3.【Standard Size】The keyboard wrist support (460x85x30 mm) and the mouse pad with wrist rest (26x230x30 mm/ 10x9.1x0.98 in) can perfectly and nicely fit most keyboard, mouse and palm size. Ideal keyboard and mouse pad to be used with PC, Laptop, Notebook, Mac, etc.<br /> 4.【Anti-slip Rubber Base】The backside of this wrist support kit is thickened with 3mm textured rubber material, which makes the pads stay in place and keeps them from slipping around on your desk or glasses. Double-stick and press-process edges to provide flat and smooth edges that won't roll up or separate.<br /> 5.【Ergonomic mouse pad】 A wrist support is designed on the mouse pad so that your wrist can move on a soft surface and the pressure of the wrist is reduced.