Cooling Seat Cushion Needs No water, No refrigeration, No electricty, recharges all by its self. Cooling Seat Cushionit is perfect for the car, desk, wheelchairs ... tush.Needs No water, No refrigeration, No electricty, recharges all by its self. Can be placed in the fridge or freezer ... surrounding temperture.Supports pressure up to 300 pounds. 14x14 Cooling Seat Cushion