Cooling Wrist Band/Wrap for Sports, Exercise, Running, Hiking, Gardening - Just Wet and Stay Cool for Hours! - 2.5x11 inches [Pink] Soak in cold water 3-5 minutes until crystals fully absorb the water Gently remove excess water from surface Band around your wrist Place in refrigerator for 30 minutes for an even great cooling effect. Reusable up to 30 times by reactivating with water