Arthritis Compression Gloves Features 1. High performance composite material that provides compression and support for the hand joint. 2. Reduce injuries and restore arthritis, pain and pain. 3. Maintain hand joint comfort and warmth, increase blood flow, and help restore joints and muscles 4. Touch screen design does not affect the general use of mobile phones. How do I determine the size? To find your correct size, I recommend that you use the size chart on the product details page and take measurements on your palm to find your size and choose the glove that fits your size. To measure for size, with your hand open measure across the palm of your hand right below your fingers. If you don’t feel compressed or even no effect, it may be too large, please contact us for a smaller size. If you feel very tight and very painful, it should be too small, please contact us for a larger size. Small Size: 2.3″-2.8″ (or 5.8cm �?7.1cm) Medium Size: 2.8″- 3.3″ (or 7.1cm �?8.4cm) Large Size: 3.3″- 3.9″ (or 8.4cm -9.6cm) X-Large Size: 3.9″- 4.5″ (or 9.6cm -11.4cm) TIPS As compression glove, we recommend that you choose the right size, cannot be too big. The touch screen effect of this product can only be used to make calls and browse news, and cannot be used for operations that require refinement, such as not being able to play games and sending emails. Due to the special nature of the fabric, there may be a very small number of seam tears. If it happens, you can contact us to replace a new pair of replacements for free or get a refund.