The toilet seat replacement parts kit is easy to install with a convenient and fast installation process. Simply push the toilet seat nut into the hole, place the gasket, and tighten the bolt from the top. The screw will expand and secure itself into the hole. With built-in adjustment range and a compact design, it allows for easy installation, quick disassembly, and simple cleaning. These expanding toilet seat screws provide a secure fit for toilet lids, helping to eliminate instability. If your toilet seat wobbles, replace the old plastic inserts with these durable fixing screws. This toilet seat fixing kit is ideal for replacing broken or worn toilet seat hinges. Fits most standard WC toilet pans. Suitable for top-fix toilet seats and back-to-wall units. Package Contents: 1 set (only the items listed, other products not included) Size: Refer to the image for detailed dimensions (Note: Size is measured manually, please allow 12 cm variation) Color: Silver (Due to monitor settings and lighting, actual color may vary slightly from the image)