Introduction
This manual provides comprehensive instructions for the safe assembly, operation, maintenance, and care of your SANDINRAYLI 3-in-1 Convertible High Chair. Please read this manual thoroughly before use and retain it for future reference. This high chair is designed to adapt to your child's growth, functioning as a high chair, a standalone toddler chair, and a children's table and chair set.

Image: The SANDINRAYLI 3-in-1 Convertible High Chair shown in its full high chair configuration, a lower standalone chair configuration, and a separate table and chair configuration. The product features a green and blue color scheme with a white frame.
Important Safety Warnings
- ALWAYS use the 5-point safety harness to secure your child in the high chair.
- NEVER leave your child unattended in the high chair.
- Ensure all parts are correctly assembled and locked into place before each use.
- Do not use the high chair if any parts are broken, torn, or missing.
- Keep children away from the product during assembly and disassembly.
- Place the high chair on a flat, stable surface.
- Do not allow children to climb on the high chair.
- Maximum weight recommendation: 39.7 pounds (18 kg).
- Suitable for children 6 months and older.

Image: A side view of the high chair illustrating its stable, wider, and thicker base design for enhanced safety, indicated by a red triangle representing stability.

Image: A detailed view of the 5-point safety harness, highlighting the shoulder, waist, and crotch straps designed for secure and adjustable fit for growing children.
Package Contents
Please verify that all components are present before beginning assembly:
- High Chair Seat with Cushion
- Removable Feeding Tray
- Main Support Legs (4 pieces)
- Footrest
- Connecting Bars/Supports
- Assembly Hardware (if applicable, though product states tool-free snap-lock)
- Instruction Manual
Assembly and Setup
The SANDINRAYLI High Chair features tool-free snap-lock connectors for quick assembly. Assembly typically takes approximately 30 minutes.
- Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, flat surface.
- Assemble Base: Connect the main support legs using the provided connecting bars. Ensure all snap-lock connectors click securely into place.
- Attach Seat: Align the high chair seat with the assembled base and press down firmly until it locks into position.
- Install Footrest: Slide the footrest into the designated slots on the main support legs. Adjust to the desired height if multiple positions are available.
- Attach Tray: Slide the feeding tray onto the armrests of the seat. Ensure it clicks into one of the three adjustable positions.
- Final Check: Before first use, gently pull on all assembled parts to confirm they are securely fastened.
Operating Modes (3-in-1 Functionality)
This high chair is designed to convert into three different modes to accommodate your child's growth:
1. High Chair Mode (6-12 Months)
This is the primary configuration for infants learning to eat solids. It provides a secure and elevated position for feeding.
- Use with the full height legs and the feeding tray attached.
- Always secure your child with the 5-point safety harness.
2. Standalone Toddler Chair Mode (1-3 Years)
As your child grows, the high chair can be converted into a lower, standalone chair, suitable for toddlers.
- Remove the upper leg extensions to lower the chair.
- The feeding tray can remain attached or be removed depending on use.
- Continue to use the safety harness as needed for younger toddlers.
3. Table and Chair Set Mode (3-6 Years)
For older children, the components can be separated to form a small table and a separate chair, ideal for activities like drawing or snacking.
- Disassemble the high chair into its base components.
- Reconfigure the legs and supports to form a small table.
- Use the seat with its lower leg configuration as a separate chair.

Image: A visual representation of the high chair's versatility, displaying a baby in the full high chair, a toddler in the low chair configuration, and an older child using the separate table and chair set.
Adjustable Features
Tray Adjustment and Removal
The feeding tray offers 3-position adjustment to accommodate your child's size and can be removed for easy cleaning or when converting to other modes.
- To adjust the tray, locate the release levers or buttons on the underside or sides of the tray.
- Press the levers/buttons and slide the tray forward or backward to the desired position. Release to lock.
- To remove the tray, press the release mechanisms and pull the tray completely off.

Image: A composite image demonstrating various adjustable features, including the removal of the feeding tray, adjustment of the safety harness straps, and the use of a red release button for structural changes.
Harness Adjustment
The 5-point safety harness is adjustable to ensure a snug and secure fit for your growing child.
- Adjust the shoulder straps by sliding the buckles up or down to the appropriate height for your child's shoulders.
- Adjust the waist straps to ensure a snug fit around your child's waist.
- Ensure the crotch strap is positioned comfortably and securely.
- Always ensure the harness is tight enough so that your child cannot slip out, but not so tight as to cause discomfort.
Cleaning and Maintenance
Regular cleaning and maintenance will prolong the life of your high chair and ensure a hygienic environment for your child.
Tray Cleaning
- The feeding tray is designed for easy cleaning. It can be wiped clean with a damp cloth and mild soap.
- The tray is also dishwasher safe for thorough sanitization. Place on the top rack of the dishwasher.

Image: A split image demonstrating two methods for cleaning the high chair tray: manual wipe cleaning under a faucet and placement in a dishwasher for machine washing.
Seat Cushion and Frame Cleaning
- The seat pad is machine-washable. Refer to the care label on the cushion for specific washing instructions.
- Wipe down the plastic frame and other surfaces with a damp cloth and mild soap. Avoid abrasive cleaners.
- Ensure all parts are completely dry before reassembling or storing.
General Maintenance
- Periodically check all screws, bolts, and connectors to ensure they are tight and secure.
- Inspect the high chair for any signs of wear, damage, or loose parts. Discontinue use if any damage is found.
Storage
When not in use, store the high chair in a clean, dry place away from direct sunlight and extreme temperatures. If disassembling for storage, keep all parts together to prevent loss.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| High chair feels unstable. | Parts not fully locked; uneven surface. | Ensure all snap-lock connectors are engaged. Place on a flat, level surface. |
| Tray does not slide smoothly or lock. | Obstruction in tracks; release levers not fully pressed. | Check for food debris in the tracks. Ensure both release levers are pressed simultaneously when adjusting. |
| Harness is too loose or too tight. | Incorrect adjustment. | Refer to the "Harness Adjustment" section to properly adjust straps for a snug fit. |
| Difficulty converting between modes. | Components not fully disengaged; incorrect reassembly. | Ensure all release buttons are pressed and components are aligned correctly during conversion. Refer to "Operating Modes" section. |
Product Specifications
- Model: B09JB5YV1D
- Brand: Sandinrayli
- Product Dimensions (High Chair): 25"D x 31"W x 42"H (approx. 63.5cm D x 78.7cm W x 106.7cm H)
- Item Weight: 20 Pounds (approx. 9.07 kg)
- Maximum Weight Recommendation: 39.7 Pounds (approx. 18 kg)
- Material Type: 100% BPA-free PP Plastic
- Color: Green (as per current model)
- Recommended Age: 6 months and up
- Features: 3-in-1 Convertible, Adjustable Tray (3 positions), 5-point Safety Harness, Easy Clean, Multifunctional

Image: A diagram illustrating the key dimensions of the high chair in both its full and low configurations, alongside its net weight (16.8 lbs) and maximum load capacity (39.7 lbs).
Warranty and Customer Support
For warranty information, please refer to the documentation included with your purchase or contact Sandinrayli customer service. If you have any questions, concerns, or require assistance with your product, please contact Sandinrayli customer support through their official channels.
You can visit the Sandinrayli Store on Amazon for more information or to contact support.
