Name :sealing loop ISO9001 certification Spec: 20 47 58 Material: silicon Color: natural color,iron oxide yellow Products feature1,made of 100% silicone material 2,nontoxic, odorless, non-corrosive ,antioxidative3,Each product have good quality and a long service life. Product attributesNamesilica gel circleFull specifications20,25,32,47,58,70mmProduct size20,25,47,58mmFlanging Height11mm, ...