We manufacture timing pulleys as follows:H,XH,XXH;L,XL,MXL;T2.5,T5,T10;HTD/STD ... ,Anodizing,Nickel-plated,Zinc-plated etc.3.Teeth profile: H, XH, XXH; L, XL, MXL; T2.5, T5, T10, T20; HTD ... quality products with competitive price in China. Timing Pulley MXL 025