Introduction
Thank you for choosing the Coolife Hardshell Luggage Set. This manual provides essential information for the proper use, care, and maintenance of your new luggage. Please read these instructions carefully before using your luggage to ensure optimal performance and longevity.
Product Features
- Durable & Impact-Resistant Shell: Constructed from premium ABS material, providing superior durability and impact resistance while remaining lightweight. This protects your belongings from bumps and scratches during travel.
- 360° Spinner Wheels: Equipped with smooth, multi-directional spinner wheels for flexible and silent rolling across various surfaces, allowing for effortless maneuverability.
- Comfort Grip Telescoping Handle: An adjustable telescoping handle with a soft grip offers comfortable and secure handling, reducing hand fatigue during transit.
- Secure TSA-Approved Lock: Features a built-in TSA-approved combination lock for enhanced security and hassle-free airport inspections.
- Sturdy YKK Zippers: Heavy-duty YKK zippers ensure smooth closure and reliable performance, preventing snags or breakages.
- Well-Organized Interior: The interior is fully lined and includes mesh zipper pockets and elastic straps to keep your belongings neat and secure.
- Nested Design: Smaller luggage pieces can be stored inside larger ones for efficient space-saving when not in use.

Image: The spacious interior of the Coolife luggage, showing mesh zipper pockets and elastic cross straps for organized packing.
Setup
Setting Your TSA Combination Lock
Your luggage is equipped with a TSA-approved combination lock. The initial combination is typically 0-0-0. To set your personal combination:
- Ensure the lock is set to the default combination (0-0-0).
- Locate the small reset button (usually a small hole) on the side or bottom of the lock. Use a pen or a pointed object to press and hold this button until you hear a click.
- While holding the reset button, set your desired 3-digit combination by turning the dials.
- Release the reset button. Your new combination is now set.
- Test your new combination by scrambling the dials and then entering your set code to open the lock.
Important: Remember your combination. There is no master key provided for personal use, and the manufacturer cannot assist in opening the lock if the combination is forgotten.

Image: Detailed view of the built-in TSA lock mechanism, along with reinforced grip handles, side bumper feet, and a durable YKK zipper.
Operating Instructions
Using the Telescoping Handle
The telescoping handle is designed for comfortable maneuvering. To extend the handle, press the button located on the top of the handle and pull upwards. To retract, press the button again and push downwards until it locks into place. The handle has multiple locking positions to accommodate different heights.

Image: A close-up view of the smooth and sturdy telescoping handle, illustrating its three adjustable gear levels for ease of use.
Utilizing Spinner Wheels
Your Coolife luggage features 360° spinner wheels for effortless mobility. These wheels allow the suitcase to glide smoothly in any direction, reducing strain on your arm and shoulder. For best results, push the luggage upright rather than tilting and pulling it on two wheels, especially on smooth surfaces.

Image: A close-up of the 360° multi-directional spinner wheels, designed for smooth and silent rolling.
Maintenance
Cleaning the Exterior
To clean the hardshell exterior, wipe with a soft cloth dampened with mild soap and water. Avoid abrasive cleaners or solvents, as these can damage the finish. For stubborn marks, a gentle cleaner specifically designed for ABS plastic may be used. Dry thoroughly after cleaning.
Interior Care
The interior lining can be spot cleaned with a damp cloth and mild detergent. Allow the interior to air dry completely before closing the luggage to prevent mildew.
Wheel and Handle Maintenance
Periodically check the wheels for any debris or hair that may impede smooth rolling. Clean as necessary. The telescoping handle mechanism should be kept free of dirt and dust to ensure smooth operation. Avoid excessive force when extending or retracting the handle.
Storage
When not in use, store your luggage in a cool, dry place away from direct sunlight. Utilize the nested design to save space by storing smaller pieces inside larger ones.
Troubleshooting
Stuck Telescoping Handle
If the handle becomes difficult to extend or retract, check for any visible obstructions or debris in the mechanism. Ensure the release button is fully depressed. Avoid forcing the handle, as this can cause damage.
Wheels Not Rolling Smoothly
Inspect the wheels for any trapped dirt, lint, or hair. Remove any obstructions carefully. If a wheel is damaged, contact customer support for assistance.
Zipper Issues
If a zipper snags, gently pull the fabric away from the zipper teeth and try to move the slider. Avoid excessive force. Ensure the zipper is aligned correctly before attempting to close it.
Combination Lock Not Opening
Double-check that you are entering the correct 3-digit combination. Ensure each dial is precisely aligned with the indicator marks. If you have forgotten your combination, there is no override; you may need to contact a locksmith or the manufacturer for potential solutions, though typically a forgotten combination cannot be reset without the original code.
Specifications

Image: A visual guide to the dimensions, weight, and capacity of the 16, 20, 24, and 28-inch Coolife luggage pieces, including the maximum extended handle height of 41 inches.
| Feature | Detail |
|---|---|
| Brand | Coolife |
| Model Number | yd13 |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Shell Type | Hard |
| Wheel Type | Spinner (4 wheels) |
| Lock Type | Combination Lock (TSA-approved) |
| Handle Type | Telescopic Extendable Handle |
| Water Resistance Level | Water Resistant |
| Color | Apricot Black |
| Capacity (28 inch) | 93 Liters |
| Item Dimensions L x W x H (28 inch) | 20"L x 12"W x 29"H |
Warranty and Support
Coolife luggage products are designed for durability and performance. For specific warranty information, including coverage details and duration, please refer to the warranty card included with your purchase or visit the official Coolife website. If you encounter any issues or require assistance with your luggage, please contact Coolife customer support directly through their official channels or the retailer where the product was purchased.
Please retain your proof of purchase for any warranty claims.