HIYAKOI B0CXPPM3GK
HIYAKOI Convertible Baby HighChair Set - Instruction Manual
Model: B0CXPPM3GK
Brand: HIYAKOI
Introduction
This manual provides essential information for the safe and proper assembly, operation, and maintenance of your HIYAKOI Convertible Baby HighChair Set. Please read all instructions carefully before use and retain this manual for future reference.
Safety Information
Your child's safety is paramount. Always follow these safety guidelines:
- Never leave your child unattended in the high chair.
- Always use the five-point safety harness to secure your child.
- Ensure the high chair is placed on a flat, stable surface.
- Keep children away from the high chair during assembly and disassembly.
- Regularly check all parts for wear, damage, or loose fasteners. Discontinue use if any damage is found.
- Do not use the high chair if any components are broken or missing.
- Do not allow children to climb on the high chair.
- Maximum weight capacity: 250 lbs (100 kg).
- Suitable for babies aged 6 months and up.
Parts List
Before assembly, ensure all parts are present and undamaged:
- High Chair Frame (main structure)
- Seat Plate
- Footrest Plate
- Removable Tray
- Five-Point Safety Harness
- Removable Cushion (optional use)
- T-shaped Guardrail
- Aluminum Alloy Connecting Pipes
- Anti-slip Footpads

Image: Key adjustable components of the HIYAKOI High Chair, including space, front/back, and height adjustments.
Setup and Assembly
Assembly is straightforward and requires no tools. Follow these steps:
- Unpack Components: Carefully remove all parts from the packaging and verify against the parts list.
- Assemble Frame: Connect the main frame components, ensuring they click securely into place. The triangular design provides stability.
- Install Seat and Footrest Plates: Slide the seat plate and footrest plate into the desired height slots on the frame. Ensure they are level and firmly seated. These can be adjusted later as your child grows.
- Attach Guardrail and Tray: Secure the T-shaped guardrail to the seat. Then, attach the removable tray by sliding it onto the designated slots until it locks.
- Secure Harness: Thread the five-point safety harness through the appropriate slots in the seat and secure it.
- Add Cushion (Optional): Place the removable cushion onto the seat for added comfort.
- Final Check: Before first use, double-check all connections and adjustments to ensure the high chair is stable and secure.

Image: Overview of the high chair's durable and sturdy construction, highlighting safety and comfort features.
Operating Instructions
Adjusting for Growth (6 Months to Adult)
The HIYAKOI high chair is designed to adapt to your child's growth, from infancy through childhood and beyond. No tools are needed for adjustments.
- 6 Months to 36 Months (High Chair Mode): Use with the food tray, harness, and cushion. Ensure the seat and footrest are adjusted so your baby's hips, knees, and ankles are at a 90-degree angle for optimal posture.
- 3 to 6 Years Old (Dining Chair Mode): The safety harness and tray can be removed. Adjust the seat and footrest plates to accommodate the child's size, maintaining the ergonomic 90-degree angle.
- 6 Years Old + (Adult Chair Mode): The high chair can be used as a regular chair by adjusting the seat and footrest plates to the lowest positions or removing the footrest entirely. It supports up to 250 lbs (100 kg).

Image: Visual representation of the high chair's versatility, adapting to users from 6 months old to adults.
Using the Tray and Harness
- Attaching/Detaching Tray: The tray slides on and off easily. Ensure it clicks into place when attaching. It is dishwasher-safe for convenient cleaning.
- Securing Harness: Always fasten the five-point safety belt snugly around your child. Adjust the straps for a secure fit, preventing your child from climbing out.
- T-shaped Guard: The integrated T-shaped guardrail provides additional safety and comfort, preventing slipping.
Video: Demonstration of the HIYAKOI High Chair's features, including ergonomic seating and adaptability for different ages.
Maintenance and Cleaning
Regular cleaning and maintenance will prolong the life of your high chair:
- Frame and Seat: Wipe down with a damp cloth and mild soap. Avoid abrasive cleaners. The smooth, curved shapes minimize crevices for food to get stuck.
- Tray: The tray is fully removable and machine-washable or can be wiped clean.
- Harness and Cushion: The straps and cushion are fully removable and machine-washable. Refer to the care label on the cushion for specific washing instructions.
- Inspection: Periodically check all screws, bolts, and connections to ensure they are tight. Re-tighten if necessary.
- Storage: Store the high chair in a dry place away from direct sunlight when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| High chair feels unstable. | Not all connections are secure; uneven surface. | Ensure all parts are properly assembled and locked. Place on a flat, level surface. Check anti-slip footpads. |
| Tray is difficult to attach/detach. | Misalignment; food debris in tracks. | Ensure proper alignment. Clean any food debris from the tray and chair tracks. |
| Harness does not secure child properly. | Straps are too loose; incorrect threading. | Adjust straps to a snug fit. Refer to assembly instructions for correct harness threading. |
Specifications
- Product Dimensions: 22"D x 18.1"W x 32.7"H (55.9 x 46 x 83.1 cm)
- Item Weight: 25.3 pounds (11.5 kg)
- Maximum Weight Recommendation: 250 lbs (100 kg)
- Material Type: 90% PP (Polypropylene) + 5% Polyester + 5% Aluminum Alloy
- Color: Grey
- Care Instructions: Hand Wash, Machine Wash (for removable fabric parts)
- Additional Features: Convertible High Chair, Easy to Clean, Height Adjustable, Removable Tray & Harness, Sturdy Construction
Warranty and Support
HIYAKOI products are designed for durability and safety. This product comes with a One-year Warranty from the date of purchase, covering manufacturing defects.
For customer service, technical support, or warranty claims, please contact HIYAKOI customer service. Please have your model number (B0CXPPM3GK) and proof of purchase ready.
We are committed to providing 24-hour customer service to assist you with any inquiries.
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