5PCS 3D Printer Flat Type 15.3mm Outer Diameter Height Plastic Pulley Concave Idler Gear

Features:

Flat Width: Bore: 5mm, 15.3mm, Height: 9mm
Color: Black
Bearing Material: ABS+Carbon Steel

Note:
please note the size about this product. (shown as the picture)

Package included:

5 x Flat Type Idler pulley