【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, including expansion balls, screws and washers. 【Universal Toilet Seat Screws】: These toilet seat screw accessories are universal, suitable for openings 13-18 mm 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 fixing parts 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.