https://www.belkin.com/vn/p/gel-wrist-pad/F8E244-BLK.html
The WaveRest™ Gel Wrist Pad is an ergo support mouse pad that's also perfect for people who use calculators, adding machines and other desktop machinery. Its patented Wave design and the GelFlex™ Comfort Zone contours to your wrist's curves and movement which helps to reduce wrist stress that could lead to Repetitive Motion Disorders.