Arthritis gloves serve several purposes. The titanium ionized far infrared rays of the GFOUK gloves work during flare-ups to help reduce swelling, ease joint stiffness and improve circulation, as well as warming stiff hands and reducing pain. Overall, these gloves heal symptoms quickly and provide comfort. With the GFOUK Titanium Ionized Far Infrared Therapy Arthritis Gloves, you can go about your daily activities (like using your smartphone or computer) without them getting in the way, and they fit all hand sizes! OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.