Versatile heating pad with adjustable heat settings. Perfect for back pain relief. Also great for knee pain, shoulder pain, and elbow pain relief. SandPuppy Heatwrap is a versatile heating pad made with a soft Velcro fabric, and has been specially designed to be convertible to fit the back, knee, shoulder and even elbow. Just strap it on around wherever your ache is and let the soothing comfort of heat relax you. Application of heat relaxes muscles, warms up and lubricates joints before activity and even eases muscle spasms. What's more, heat therapy is non-invasive and non-chemical, making it absolutely safe for everyone. The SandPuppy Heatwrap fits snugly around multiple parts unlike most heating pads and provides a deep penetrative heat. It is the perfect, versatile, lightweight, and safe heating pad that provides quick relief.