Try the 3D space mouse... no table top required! It fits easily into either your right or left hand and doesn't need to be contained to a mouse pad. Never hunt for "mouse space" again! It's a great alternative to standard mice or trackballs. The ergonomic design of this 3-button mouse/trackball combinations is ideal for home, office, or the mobile traveler. A perfect "hands free" computer control device for multimedia presentations!