Value Collection 12MP012-6CA-1/8 Timing Belt Pulleys; Pulley Type: Hub w/One Flange; Number of Teeth: 12; Outside Diameter (Decimal Inch): 0.2860; Material: Aluminum; Pitch Diameter: 0.306 in; 0.306 mm; Face Width: 0.201 in; 0.201 mm; Flange Diameter