1.Ergonomically & Massage Design The ergonomic structure with massage design of the arched part provides the maximum comfort to your wrist. We designed the tilt angle and massage bulge on the surface, a three-dimensional geometric irregular shape and massage part can totally support your wrist and promoting y blood flow on the arched part. Your wrist will be no longer stressed. 2. Materials It is made of memory foam.The covering is the smooth fabric,high-quality Lycra cloth and high-definition bright print pattern on the surface, which won't irritate to skin.The back is made of Anti-slip PU.The fabric stays with the PU material base tightly, hard to curl up on the edges even after long time usage. 3.PERFECT SIZE The length-to-short ratio meets different usage habits and scenarios,12x8x1.2 Inch (300x200x30mm), only a little longer than A4 paper, suitable for most desktops. The right size and enough space can make the mouse operate more ly. 4.Powerful Function According to the ergonomics, it is divided into two areas of different sizes: mouse operation area and arm support area, so that you can move the mouse more easily and at the same time, you can make the wrist evenly and tightly fit, reduce wrist pressure and avoid carpal tunnel syndrome.