Multi-purpose: Suitable for office naps, cool pillows in summer, high-quality PVC material, cool to the touch, and does not stick to the skin when sweating.How to use: Fill the ice pillow with water and put it in the refrigerator for at least 10 minutes. You can control the storage time according to your personal situation. The longer the storage time, the colder it will become. This cooling pillow is designed using a lightweight, portable, and puncture resistant PVC material that requires no electricity. The cooling pillow can be used as cushion, back cushion, car ice pad, nap mat, pillow, computer pad, pet pad, etc. Gel water pillow is perfect for home, car, office, pet, chair and bed.