PVC Ice Bag 1.Material: PVC 2.Medically recommended 3.Various sizes :4'', ... cool in summer,and when someone had a heat or get a headache,may use the ice bag on the head.when get pain ... on arms,legs or other,also can use it ... to lenitive.3. Medically recommended 4. Various sizes :4‘’,5‘’,6", 7", 8", 9", 10", 11" PVC Ice Bag