Intelexinvented theaward-winningHot-Paksin 1995 and since then millions of people worldwide have benefited from this simple and affordable classic design.Hot-Pakshas set the standard for soothing warmth and comfort.You can even chillHot-Paksto cool yourself on a hot day or when cold pack therapy is what the doctor ordered! Quick facts: Simple to use - just warm in a microwave. Can be reheated hundreds of times. Do NOT immerse in water or wash in the washing machine - surface clean only with a damp sponge. Warmies - Hot-Pak Soft Cord Gray