REDUCE WRIST STRESS - Our specially designed support pads are perfect for long periods of typing or surfing the internet. Memory foam wrist rests conform to your hands, helping to reduce wrist strain that can lead to repetitive strain injuries. DIMENSIONS - Keyboard wrist rest: 17.12 x 3.34 x 0.98 inches (approx. 43.5 x 8.5 x 2.5 cm), Mouse wrist rest: 9.84 x 9.05 x 0.98 inches (approx. 25 x 23 x 2.5 cm). The keyboard wrist rest fits all types of keyboards. ERGONOMIC DESIGN - Special wave-patterned support to relieve wrist fatigue and alleviate aches and pains from long hours of typing. MEMORY FOAM - Memory foam molds to the hand in response to heat and pressure, distributing body weight evenly. It then returns to its original shape once pressure is removed. In addition to preventing impact, these properties make memory foam very comfortable. ANTI-SLIP MATERIAL - Anti-slip rubber base provides a strong grip, preventing keyboard buttons and mouse from sliding or unwanted movement. Double-glued and hand-pressed to the edge to provide flat, smooth edges that won't roll up or crack.