Mad Rock doesn"t feel the need to copy existing designs. They much prefer to make them better. The Mad Rock Aviator uses the idea of the standard tube-styled belay device as a starting point and improves upon it. Forged and machined aircraft aluminum body for light weight and optimal heat dissipation, the Aviator"s unique removable spring keeps the device from locking when you feed the rope - an inherent design weakness with regular tube-styled belay devices. The Aviator also works for belaying seconds off an anchor and can be easily rigged for releasing a load when used off an anchor as well. The Aviator"s unique ergonomic "fin" can be used to modulate speed while lowering or descending. The Aviator: the belay device made better.