Gt2 Aluminum Timing Belt Pulley 20&60 Teeth 8mm Born Synchronous Wheel, With A Closed-loop Length 200mm Width 6mm Belt And An M4 Allen Wrench, For 3D Printer

5M Gt2 Timing Belt 6mm Width + 4pcs 20 Teeth 5mm Bore Timing Pulley Wheel + 4pcs Idler + 4pcs Tensioner Spring Torsion + 2pcs Gear Clamp Mount Block With Allen Wrench For 3D Printer