Materials: Rubber and stainless steel materials guarantee the quality, which is a great substitute for old and broken toilet seat hinges Installation pattern: applicable to most hinge bolt replacement screws of toilet seat. Package contents: 2 PCS toilet bolts. (with 14mm stainless steel gasket) Rubber stopper: professional toilet seat screw for toilet. Useful function: It is a good replacement tool to replace old damaged toilet seat hinges. We only sell the first item in the picture, not other items in the picture. Due to the difference of different monitors, the pictures may not reflect the actual color of the product. Due to manual measurement, please allow minor dimensional errors.