1. Easy to use. simply fill with ice cubes or some hot water (not boiling) to relieve discomfort. 2. Multipurpose. used for cold or hot therapy, cold therapy can be used for headache, fever, sprain, bruises, bumps and other sports injuries 3. Fine workmanship, use high-quality polyester-cotton materials 4. Quality and safety. do not worry of spilling water out
