This larger sized, flatter, adjustable mouse has a built-in contoured palm rest, which encourages neutral wrist, hand and finger positions.

The Whale-mouse promotes the use of the larger and stronger arm muscles allowing the smaller muscles of the fingers to rest and relax while it is being used.

Because it adjusts in length by up to 1.5 inches, the Whale Mouse fits any hand size. And because it is symmetrical, it is perfect for left or right handed use.