Reusable Hot/Cold Pack, small in size | Relieves pain and swelling associated with injuries including muscular aches, strains and bruising | Use heat for temporary pain relief or aching muscles and joints, nagging back pain or menstrual cramps | Suitable for Hot and Cold therapy | Microwavable and freezable | Soft and comfortable | Provides instant access in all work environments to a cold pack for use on sprains / strains / bumps