The 3D printer pulley is convenient and practical, with excellent texture, and can serve you for a long time without being easily damaged. The craftsmanship can serve you well without breaking easily. This is a very practical 3D printer pulley.Features-Color:Black-Material:Plastic-Size:2.40X2.40X1.00cm/0.94X0.94X0.39in- Brings to all DIY 3D printers, practical replacement pulley wheel for broken one.- These 3D printer wheels move smoothly, have low noise, and print with high accuracy, which can improve the printing speed well, which is a useful 3D printer accessory.- Wheels have good physical, mechanical and chemical properties, especially have great wear-resistance, and sturdy.- They are perfect for working with the 3D printer, easy to install, very convenient.- Adoption of simple and convenient design, this product also can be used for a long time.Package list: 16 x Roller Wheels