MaterialThis toilet fixing kit made of high-quality rubber and stainless steel, which sturdy and durable, with good toughness, stable structure. SizeExpansion ball diameter: approx. 1.7 cm/ 0.67 inch. Rubber sleeve length: approx. 4 cm/ 1.57 inch. Metal screws: 4.8 cm/1.89 inch. Metal screw diameter: 0.5 cm/ 0.2 inch. Metal washer diameter: 1.8 cm/ 0.7 inch. Easy to installToilet seat fixings kit only requires a Phillips head screwdriver, screw the toilet seat hinge into the hole on the toilet lid, and tighten it so that the toilet lid is no longer loose. The toilet seat fittings and fixtures are convenient and time saving. Widely usedThe soft close hinges for toilet seat great for broken or old toilet seat hinges. The fittings for toilet seat are fit for most standard toilet seats with top fix hinges. What you get6 Pack toilet seat spares. The detail size of each toilet seat screws is on the picture, please measure before buying to make sure your toilet seat work well.