Check the listing for details. 3D Printer POM Rollers, 13pcs High-Speed Gantry Wheels with 625ZZ, White. Condition: New. Listed at 20.60 USD. Description:POM Material: These 3D Printer wheels crafted from durable POM material and 625zz all-metal bearings, reduce vibration and noise during printing.Smooth Rolling: Nylon covered with high hardness, and wear resistance, providing a reliable surface for smooth rolling. It is non-degumming, has no bubbles and has a smooth surface.Less Noise: The embedded good rolling bearing of bearing steel with small resistance, smooth running higher printing precision and less noiseWide Application: Widely used for CNC machines and 3D printers. Also, it is suitable for engravers, laser cutters, camera sliders, plasma cutters, robotics, furniture and other DIY machines.Specification:Cage Material: Chrome Steel (GCr15)Noise Level: Z3Bearing Model: 625ZZOuter Diameter: 24 mm/0.94 inchInner Diameter: 5 mm/0.2 inchThickness: 11 mm/0.