Material: Made of polycarbonate, its fine wear resistance, retardation, and oxidation resistance can help your 3D printer complete its work well Compatibility: It applies to most DIY 3D printer V-slot aluminum profiles, including but not limited to , 3, Anet, etc. Nice expression: 3D printer wheels move smoothly, low noise, high printing precision, and can increase the printing speed well, are useful accessories for 3D printers Scope of application: used not only mainly for 3D printers, but also for engravers, hotends, milling machines, camera sliders, plasma cutters, robotics, furniture and other DIY machines Size: Outer diameter: 24mm Inner diameter: 5mm Height: 11mm Color: transparent Material: Transparent polycarbonate wheels Package Contents: 16 pcs polycarbonate pulleys for 3D printer Only the above package content, other products are not included. Note: Light photography and different screens may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm.