Check the listing for details. 8Pcs 3D Printer Wheel with 625ZZ Linear Bearing for 3D Printer, Yellow. Condition: New. Listed at 17.98 USD. Description:Material - The 3D printer wheel is made of a durable POM wheel, and full metal 625ZZ bearing, with excellent anti-rust and corrosion performance. It is strong and durable, has a long service life, and is suitable for applications requiring durability and stability.Features - The 3D printer wheel is carefully designed to enhance smoothness and precision in the operation of machines as 3D printers, as well as increase printing speed and reduce printing noise.Installation - To install the 3D printer wheel, first turn off the printer and remove the old pulley, then clean the installation area. Next, place the pulley bearing into the center hole of the pulley, applying lubricant if necessary for smooth movement.