1. Diameter : 2 - 15mm 2. Material:POM(Delrin),NYLON,ABS,AS,PP,PE,PVC,PS,PC, TEFLON ... of OriginStandardxinxinZhejiang China ( mainland)SGSAbout plastic ball Product namePlastic ballMaterial POM(Delrin),NYLON,ABS,AS,PP,PE,PVC,PS,PC, TEFLON ... - 15 days after receiving the advance paymentChemical compositionDELRIN Balls (ACETAL RESIN - POM) is similar to nylon but slightly harder and denser. Recommended ...