Longer 3D Printer LK1 LK2 LK4 LK4 PRO Bearing Pulley Wheel Compatible With Alfawise U20 U30 U30 PRO
This metal pulley wheels low noise, smooth and stable motion, solve wobble problem, improve the printing quality and speed.
Outer Diameter: 24mm, Inner
diameter: 5mm, Height: 10.23 mm
Package included: 5pcs 3D Printer metal Wheels.