【Excellent material】: The toilet seat fixing screw is made of high quality rubber and stainless steel. Good flexibility, sturdy, durable, not easy to slip, not easy to break and rust. 【Package Contents】: The toilet seat fixing kit includes 2 pairs of screws expansion balls, screws and washers. 【Universal Toilet Seat Screw】: These toilet seat screw accessories are universal, suitable for to 13-18mm openings and fit most standard toilet seats. 【Easy to Install】: You can easily assemble them in minutes. Insert the toilet seat screw into the toilet installation hole and tighten the screw, which is convenient and time-saving. 【Perfect Repair】: Replace the old parts of fixing by connecting the screw of the toilet seat, firmly fix the seat and perfectly repair the defects of the soft closing mechanism of the toilet at home and save a lot on the new purchase.