When bigger is better RollerWave3 is our extended wrist support that provides greater comfort and extra support for your wrists as you work. It fits only RollerMouse Pro3. RollerWave3 wrist support provides even more comfort RollerWave3 provides a lower and smoother transition from desk to RollerMouse and keyboard. It's larger and deeper than the wrist rest that comes standard on the Pro3. This means your wrists rest on a larger surface and lie even more naturally without an angle in the wrist. This gives you an even better and more ergonomic working position as well as extra comfort and relief. With a RollerWave3, your wrists have a larger surface to rest on while you work.