For Different Grips The front side of the mouse is widened to provide extra support for lifting the mouse and ensuring a secure grip. The concave curve design provides more support for the fingers, which allows claw grip users to lift the mouse easily. Concave curved sides designed to lift the mouse easily. Projected notches on both sides that allow palm grip users to lift the mouse with ease. The upper front curve of the mouse is steeper, giving a larger gap between the fingers and mouse. This means less reliance on the fingers and more for palm grip users.