High quality GT2 Timing Belt Pulley with 16 teeth, 6mm width, and 5mm bore for precise motion control in your projects Pulley Specifications: Tooth: 16T Bore: 6mm Belt Width: 6mm Material: aluminum Package Includes: 5 x GT2 Timing Belt Pulley 1 x M2 wrench Applies to 6mm width belt;An M2 wrench is included. This pulley is for 6mm width GT2 timing belt. GT2 Pulley Kit 5 Pack Aazon.co: GT2 Aluinu Tiing Belt Pulley Kit 16 Teeth Bore 6 And 2 Wrench For 3D Printer GT2 Timing Pulley This 16 Teeth GT2-2mm Timing Pulley is great for any build but especially for those high-resolution applications. Specifications: 100% brand new and high quality SKU: GT2-16- Item Name: Aluminum Timing Pulley 16 Tooth Material: Aluminium Color: Silver GT2 (2mm) 16 Teeth 2 Flanges with Hub GT3(3mm) 20 Teeth Belt width: 6mm Bore: 5mm lt Width: 6mm/9mm/10mm for choice Bore: 3.17mm/4mm/5mm/6mm/6... Made of high quality 7075 Aviation Aluminum, excellently machined, finished smoothly. Description: This is aluminum belt pulley for 3D printer. Sprocket for 20 tooth GT2 belt Package Content: 5 X GT2 16Teeth 6mm Bore Timing Pulley+1 X M2 wrench.