Check the listing for details. [3DMakerWorld] GT2 Timing Belt and Pulley Set - 20 Tooth. Condition: New. Listed at 13.31 USD. Key Features: Timing Belt and Pulley set: 20 tooth pulley and 1164mm Powergrip(R) GT2 belt Pulley made from lightweight and durable aluminum Great for 3D Printers, CNCs or other high precision motion control applications Comes with 2 set screws to attach to motor shaft Designed to be lightweight and durable, this aluminum GT2 timing pulley is an excellent choice for 3D printers, CNCs or other high-precision motion control devices. Two large M4 set screws ensure secure attachment to the motor shaft. When used with included GT2 timing belt backslash can be greatly reduced in your 3D Printer. Item Specifics 1 - 20T Pulley 2 - Set Screws 1 - GT2 Timing belt Pulley Material: Fiberglass Reinforced Polycarbonate with brass insert Tooth Profile: GT2 Pitch: 2mm (0.08in) Pulley # of Grooves: 20 Belt width: 6mm (0.24in) Bore diameter: 5mm (0.20in) Set screws: M4 x 2 Timing Belt Material: Neoprene, fiberglass reinforced Belt # of Grooves: 582 Belt Pitch length: 1164mm (45.83in)