Dimension of keyboard wrist rest: 17.72 x 3.15 inch / 45 x 8 cm, that of mousepad wrist support: 9.84 x 7.87 inch / 25 x 20 cm. Fits all mouse/keyboard. Compatible with MacBook, compatible with iMac , compatible with Notebook, compatible with Chromebook, compatible with Ultrabook, compatible with Desktop / PC.With breathable neoprene cloth and raised memory foam. Efficient for easy typing and pain relief. Perfect for OL, gamer and programmer used in home / office.Non-slip base can firmly grasp the desk to prevent any unintentional movement.Edges is reinforced to endure long-time use. The filled cushion part will slowly rebound when leave it, not easy to deform. .Ideal gift for friend, family member and yourself. 1 year warranty on every wrist rest.