Precor C954i (120 VAC) w/ Serial Number AEXE or ADEY 2 Ply Commercial Grade Treadmill belt with double diamond imprint surface. The pulley side of our belt is made of a patented material that has a unique United States patent. The patented material is proven to create less draw on your motor allowing your treadmill to run at a lower temperature to the electronic components creating an anti-static that also minimizes noise and amp draw, while providing a comfortable, aesthetically pleasing belt that is virtually maintenance free.