Features: 1.[Suitable] Suitable for 3D printer for Ender 3 3Pro CR10 CR10 S4 CR10 S5, for Tevo Tarantula, etc. 2.[Smooth Stable] Smooth and stable movement, solve the problem of swing, improve printing quality and speed. 3.[Low Noise] These wheels are low noise, sturdy, durable, with excellent performance and high work efficiency. 4.[625zz Bearing] Using sophisticated production technology, these wheels have 625zz bearings and have a long service life. 5.[Simple Operation] Each pulley has an accurate center gasket between the two bearings, which is easy to operate and easy to use. specification:Item Type: V Shape Wheels Material: Metal Color: Black Function: 3D Printer Accessories Scope of Application: Suitable for V Shape Material 3D Printer Outer Diameter: Approx. 24mm / 0.9in Inner Diameter: Approx. 5mm / 0.2in Height: Approx. 11mm / 0.4in Net Weight: Approx. 13g / 0.5oz PackageList:15 x V Shape Wheels