1,OEM design and the size can be customized 2.Passed ISO9001:2008 3.Punctual delivery and good quality with competitive price 1. Specification:φ2402.Material:ABS, HIPS,PMMA,PC,POM,PBT,PP,PA66,PPO,PVC,TPE and PET3. Usage: sport equipment/apparatus etc.4. Low water absorption.5. Stable size, with very precise size.6. The high quality materials in stock shapes. plastic belt pulley