FULL COVERAGE - LotFancy large neck ice pack has a high collar to cover your neck, shoulders and upper back. Great for relieving acute & chronic pain, arthritis, stiff and tight muscles, nagging aches, stingers. HOT & COLD THERAPY – Warm gel pack in a microwave and apply to relieve stiffness, increase blood circulation, and relax muscles. Chill it in freezer and use to reduce inflammation, pain, and swelling. HANDS FREE DESIGN – The weight of the wrap will allow it to sit on your shoulders. Use button straps to hold it in place if walking or moving. DUAL SIDED: Smooth nylon side: Use for instant hot or cold treatment; Flannel side: Use for more gradual/gentle treatment. REUSABLE & SAFE & LONG LASTING: latex-free and non-toxic. Wide and strong border seal to prevent leaking.