Size: rubber sleeve length 4 cm/ 1.57 inch, metal screws 4.8 cm/ 1.89 inch, metal washer diameter 1.3 cm/ 0.51 inch. Fits most standard toilet seats with top hinge. Easy to Install: The toilet seat fittings adopt Phillips head, which is easy to install and remove. Perfect choice for DIY, smart design and simple installation. Material: The toilet seat screws are made of high quality rubber and metal, much better than most plastic fasteners on the market. Toilet Seat Replacement Kit: Ideal for broken or old toilet seat hinges. Fits most standard size toilet seats with a top hinge. Perfect design: the rubber stoppers slide snugly into the holes and when you tighten the bolts they smash into the holes for a good fit. Features: -Replacement for wall hung or wall hung toilet bowls. Ideal for broken or old toilet seat hinges. -Compact design facilitates installation, quick disassembly and cleaning. -Toilet lid lid seat retainers are made of good quality materials, excellent toughness, sturdy, stable and durable. -Screw the toilet seat hinges into the top hole of the toilet lid, and tighten tightly so that the toilet lid is no longer loose. -The rubber grommets have a threaded section so you can just push them into the holes at the top of the toilet bowl and as you tighten the screw it expands and tightens in the hole. Specifications: Material: Iron Rubber Color: Black How install the toilet seat hinge fixings? 1.Just push them through the holes. 2. Put on the supplied washers. 3. Screw from the top. Package includes: 4 * toilet seat fittings Warm Tips: If you have any questions about our products, please feel free to contact us, we will get back to you within 24 hours.