DescriptionThis passive round roller is made of premium material, which can withstand long-lasting use. Features the metal material, which has high durability, not easy to deform. Fine workmanship, ensures practicality.Features-Color:Black -Material:Metal -Size:2.50X2.50X1.20cm/0.98X0.98X0.47in Outer diameter: 25mm Inner diameter: 5mm Height: 12mm - It is metal 3D printer wheels with precision bearings for 3D printing. - Hard and wear-resistant, it can help your 3D printer work better. - 3D printer wheels, made of durable metal wheels, all metal 625zz bearings. - 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. - Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience.