Features High Accuracy --- The pulley is machined by high accuracy automatic lathe, and the machining error is within 0.005mm. Rolling Smoothly --- The pulley has been strictly designed and tested to make it work smoothly and steadily with low noise and low friction. Durable Bearing --- The bearing of this pulley adopts motor grade bearing, which has excellent anti rust, wear resisting and friction performance. Wide Compatibility --- This pulley is perfect for 3D printers such as for CR 10, for CR 10S, for Tevo Tarantula, for CNC hybrid router, for 8020, for 3030, etc. Good Replacement --- Perfect for use as a replacement part for your 3D printer, this pulley is exquisitely crafted to ensure the performance of your printer. Specification: Item Type: V Pulley Wheel Product Size: Outer Diameter: Approx. 24.3mm / 1in Bearing Inner Diameter: Approx. 5mm / 0.2in Thickness: Approx. 10.2mm / 0.4in Bearing Material: Carbon Steel Pulley Material: Stainless Steel Applicable Models: For Anet E16, ET4, ET4PRO, ET5, ET5PRO, for 10, 10s, 10, V2, for Ender 3, for Mega S, for Artillery X1, for Tevo Tarantula, etc. or other 3D printers. Package List:13 x V Pulley Wheel Package List 13 x V Pulley Wheel