... , and can be reused many times by following the instructions. 1.Product informationMaterialPVC,Sodium AcetatecolorRed,Orange,Yellow,Pink,Purple, ... box packing/poly bag packing/insert card packing.Funtion:For physiotherapy purposes it works especially effectively on muscle aches, ... arthritic pain, tendonitis and other aches.They are great for warming yourself up on a cold winter day. Customers designs ...