... protects your iPhone against scratches and everyday damages. You have access to all the features and styles. High quality NBR/EPDM/ ... Materials: NBR, NR, BR, HNBR, VITON, TEFLON, EPDM, Silicone, Polyurethane, Polyacrylate, Neoprene, Leather, FDA ApprovedRotary Shaft SealsV-RingsO-Ring ... SealsGamma SealsCustom Molded Rubber PartsCustom Molded Rubber Parts . silicone case designed for iphone 3G/3GS