10Pcs 20T GT2 Aluminum Timing Drive Pulley For DIY 3D PrinterThis pulley is for 2mm pitch 6mm width GT2 timing belt.The motor is not included.Specifications:Tooth: 20 (T)Pitch: 2 (mm)Bore: Dia.5 (mm)Material: Aluminum AlloyBelt Width: 6 (mm)Package includes:10 x 20T GT2 Aluminum timing belt pulley