【Package Contents】You will receive a 2-piece toilet seat screw kit, including 2 M6 stainless steel screws, 2 nylon expansion nuts, and 2 metal washers. 【Product Size】Nylon expansion nut size: 4*1.8cm/1.57*0.7in; M6 screw length: 4.5cm/1.77inch, washer diameter: 1.4cm/0.55inch. 【High-quality materials】This product is made of high-quality nylon and stainless steel, which is flexible enough, non-slip, rust-proof, not easy to corrode, and has a long service life. 【Easy to install】Just push the toilet seat screw into the toilet mounting hole and tighten it with a screwdriver, the toilet seat will no longer loosen. 【Warm tips】The toilet seat fixing accessories are suitable for most standard toilet seats, the detailed size of each toilet seat screw set can be seen in the picture, please measure before purchasing to ensure that your toilet seat will be used correctly.