... nontoxic, odorless, non-corrosive ,antioxidative Brand Name: Jiushun Model Number: 58 mm Products feature1,made of 100% silicone material 2,nontoxic ... service life. Product attributesNamesilica gel circleFull specifications20,25,32,47,58,70mmProduct size58mmFlanging Height11mmPackage sizeAccording to the product specification make to ...