Is a premium reusable cold therapy pack designed for professional and home use. Filled with a non-toxic silica gel, it stays cold for up to 30 minutes of therapeutic treatment to effectively reduce swelling, inflammation, and pain associated with injuries. The durable blue vinyl exterior is designed to withstand heavy use without leaking. Its 7.5" x 11" size is highly versatile, making it perfect for targeting the lower back, shoulders, neck, or knees.