Our most versatile hot and cold pack that wraps easily around hard to treat body parts. Provides treatment to neck & shoulders. Two "frost-free" surfaces and a unique strapping system provide therapeutic temperatures with secure positioning. Plush surface provides slow-release treatment while the rapid-release surface provides quicker results. Non-toxic gel is biodegradable and retains therapeutic temperatures longer. Store in the freezer; stays soft and pliable. Heat in microwave.