Package includes:You will get 4 pieces toilet seat replacement parts kit, enough for replace a useless toilet seat.
High Quality:The expansion nuts are made of high quality nylon material and stainless steel screws, sturdy and durable for long term use.
Screw size: 4.8 * 0.5cm; Plastic expansion nut size: 3.7 * 1.7cm; Diameter of washer: 14mm.
Easy to Install:Insert the toilet seat top fix screws into the toilet installation hole and tighten the screw, which is convenient and quick.
General Purpose: Suitable for most toilet seats with fixed hinges on the top, or replacement of damaged and worn toilet seat hinges.