Tilts notebook to optimally position hands for more comfortable typing. Viscoelastic memory foam gently molds to the contour of the hand for custom support. Underlying honeycomb structure absorbs weight to help eliminate pressure points that cause contact strain. Wrist rest has two built-in height adjustments for comfort. Raised design increases air circulation and keeps computer cooler. Ergonomic: Yes; Wrist Filling Material: Foam; Width: 12 in; Height: 1 1/2 in.