SandPuppy Strappr XL A wireless, portable heating strap for relief from knee and joint pain. An active lifestyle can frequently lead to injuries on the joints. Whether you are running, gymming, or playing any sport, joints like the elbow, wrist, knee, and ankle bear the most brunt, often leading to annoying and discomforting pain. Beat it with heat. For relief from joint pains, fitness experts strongly recommend surface heat therapy. Application of heat relaxes muscles, warms them up, lubricates the joints, and eases muscle spasms. What s more, heat therapy is non-invasive and chemical-free, making it absolutely safe for anyone. Introducing SandPuppy Strappr XL, a portable heat applicator for those niggling joint aches. It emits Far Infrared Radiation (FIR) heat that not only warms the top layer of the body but also penetrates up to 5 cm deep into the body, making it far superior to other heating solutions. Its compact form factor and snug fit has been specially designed for those who live the agile and athletic life. Made with soft, Velcro fabric, Strappr XL can be easily wrapped around wrists, elbows, knees, thigh and even the neck. Just strap it on the aching joint using the wrap band, connect to a power bank, and feel the soothing comfort of heat. Soon enough, you are ready to run again, hit the grounds, or smash aces with your racket, because Strappr XL gets you going. Now with 30% more heating area, it is a must-have fitness accessory in your kit.