Core Products 551 Hot and Cold Pack-10" x 13"

Dual Therapy Packs for Bigger Aches and Pains. Large size makes this pack perfect for the upper or lower back knees and thighs. Helps treat strains sprains tendons and other injuries. Soft frost-free cover. Store in freezer until needed. Heat in microwave. Non-toxic biodegradable gel. Custom printing available. Heating Instructions: Based on initial pack temperature below 75F (24C)Knead after each heating. Microwave ovens vary, use care when heating and removing pack from microwave. Overheating pack may cause pack to rupture and/or leak. Carefully check the pack with the palm of your hand before applying. Discard pack if punctured or broken. Heat 30 seconds on high heat knead and then continue heating at 10-second intervals until desired temperature is reached. Knead after each heating.