The Soft Comfort Large Hot & Cold Pad helps users easily apply hot or cold therapy to relieve pain from arthritis, muscle strains, sprains, tendonitis and other injuries. Arthritis sufferers and people with disabilities will find this reusable gel pad easier to use than ice bags or hot packs. The Soft Comfort Large Hot & Cold Pad has a soft, frost free cover that is gentle against the skin and does not need to be wrapped in a towel. Store this cold pad in a freezer until needed; the gel ice pad remains soft and flexible. If heat therapy is needed, place it in a microwave for heating. The non-toxic biodegradable gel is reusable and retains cold and heat longer than traditional pads. Apply this large 10 x 13 inch gel pad to the lower back, thigh, hamstrings and other large muscles for relieving pain. Soft Comfort Large Hot & Cold Pad Specifications: Cold Therapy Instructions: Place in freezer for 2-3 hours until correct temperature is reached. Can be stored in freezer until ready to use. Heat Therapy Instructions: Heat for 30 seconds in microwave, knead, then check. Continue heating in 10 second intervals until desired warmth is reached. Knead after each heating and check with the pack with the palm of your hand before applying. Measures: 10 x 13 inches. Made in: USA. Materials: Food grade propylene glycol USP, Bentonite clay, Water. Cover: Polyethylene/polyester. Weighs: 2.75 lbs.