1. O ring,oil seal,rubber o ring 2. Made of NR,SBR,NBR ,EPDM and silicone 2. Good quatily; competitive price; best service Item ST-89Material NR,SBR,NBR ,EPDM and siliconeColor black,white, redSize different size to chooseFeature durableUsage widely usedCustomizedOEM & ODM are welcomed MOQ 5000pcsSamplesSample lead time:3-5daysSample fee and the freight should be paid by buyersPacking Details ...