ITEM NAME:Aluminum GT2 16 Teeth 6mm Bore Timing Belt Pulley Flange Synchronous Wheel C2D1 Aluminum GT2 16 Teeth 6mm Bore Timing Belt Pulley Flange Synchronous Wheel C2D1 Durable and virtually. Teeth: 16T; Suits to the timing belt which is 6mm width. 16 contact with the tooth side which minimizes the risk of the belt slipping. colour: silver Material: aluminum size: Bandwidth: 6mm Hole size: 6mm Package Contents: 1 X GT2 6mm Bore Timing Pulley Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..1 X GT2 6mm Bore Timing Pulley. Suits to the timing belt which is 6mm width. Teeth: 16T;. size: Bandwidth: 6mm. Hole size: 6mm.