Cpolebev Neck Cooling Tube, Wearable Cooling Neck Wrap for Summer Heat I Hands Free Cold Pack Ice Cooling Neck Collar,White

Get ready for hot summer days and keep yourself cool with an innovative material originally developed for. This PCM gel freezes faster than water and lasts longer! (Only 10 minutes in ice water, 20 minutes in a fridge or air conditioner!) No batteries needed! No chargers needed! Anything below 18℃ (64℉) to freeze. Simply place this neck cooling tube in ice water. No ice around? No worries! Ice form with any air conditioner! Car air conditioner, office air conditioner, home air conditioner, fridge, freezer. Enjoy 40 minutes to 2 hours of . varies depending on external environment. By maintaining the optimal cooling temperature, there is no risk of skin necrosis or frostbite due to cooling.