Great as a thoughtful gift for loved ones. Unit Quantity: 3 Bags Features: Reusable,Waterproof,Leak-Resistant,Breathable,Quick Relief,Handy Design,Portable,Easy Filling Material: Polyvinyl Chloride (PVC),PVC,Waterproof Material Main Purpose: Pain Relief,Cold Therapy,Hot Therapy,First Aid,Swelling Reduction,Muscle Pain Relief,Injury Recovery.