The Integrity Health & Safety Reusable Hot & Cold Pack Medium is a reusable therapy pack for applying heat or cold to minor injuries, pain and soft tissue concerns. It is suited to workplace first aid rooms, recovery areas, schools, sports settings and general first aid kits. Cold application can help reduce swelling, inflammation and pain associated with sprains, strains and minor injuries, while heat application can provide soothing relief for muscle tension, stiffness, cramps and chronic pain. Always read the label and follow the directions for use.