The toilet seat replacement parts kit is easy to install with a convenient and fast installation process. Simply insert the toilet seat nut into the hole, place the gasket, and tighten the bolt from the topthe screw expands and secures itself into the hole. Built-in adjustment range and compact design allow for easy installation, quick disassembly, and simple cleaning. These expanding screws provide a secure fit for toilet lids, helping prevent instability. If your toilet seat moves or wobbles, replace the worn plastic inserts with these durable fixing screwsideal for replacing broken or old toilet seat hinges. Fits most standard WC toilet pans. Suitable for top-fix toilet seats and back-to-wall units. Package Quantity: 1 set Package Contents: As shown in the image (other items not included) Size: Refer to picture for detailed dimensions (Note: Size is measured manually; please allow 12 cm variation) Color: Silver (Due to differences in monitors and lighting, actual color may vary slightly from the image)