Stock aluminum and steel timing pulley flanges. Great for making your own custom pulleys and quick prototypes. Pitches include: MXL (0.080"), XL (0.200"), L (0.375"), H (0.500"), 3MM HTD, 5MM HTD, 8MM HTD, 2MM PowerGrip GT2 (2MR), 3MM PowerGrip GT2 (3MR), 5MM Powergrip GT2 (5MR), T2.5, T5, T10, AT5, AT10. Custom sizes also available. Contact us for price and delivery.