DescriptionThis is a set of 5 pieces silicon rubber sealing rings. silicone material, durable, strong sealing performance. Joint interface to prevent leakage and seal treatment. Oil resistance, abrasion resistance and water proof.Features- Color: As shown. - Material: Silicone. - External diameter: 30x1mm. - silicone material, durable, strong sealing performance. - Joint interface to prevent leakage and seal treatment. - Made of silicone material, round shape, easy to install. - Oil resistance, abrasion resistance and water proof.