3D Printer Flat/V Type Plastic Pulley Concave Idler Gear

Feature:

Flat Width: Bore: 5mm， 24mm/15.3mm， Height: 11mm/9mm
V Type Bore: 5mm， Width: 24mm， Height:11mm
Color: Black
Bearing Material: ABS+Carbon Steel
Size: Three size， please choose: (as show on the picture)

Package included:

1 x Idler pulley