• Instant hot or cold therapy for jaw, chin, face, and head relief. • Hands-free design with integrated pockets and adjustable Velcro closure from 27 to 30 inches. • Includes 4 flexible and reusable gel packs for alternative use and continuous therapy. • Ideal for relief of TMJ, wisdom teeth, oral surgery, dental implants, and migraines. • Durable gel bags made of high-quality vinyl with leak-proof nylon lining. • Safe for all ages, latex-free, and filled with non-toxic eco-friendly gel.