Package includes: you will get 10 pieces black toilet seat screws that have enough quantity to replace old and broken screws and get convenience to use the toilet better in your . material: these toilet seat screws are made of stainless steel and rubber, which are not easy to rust or get broken, making these screws can last longer than others, and can provide you better user experience. How to install: the toilet seat screw has a threaded section so you can just push it into the holes on the top of the toilet pan, and when you tighten the screw, it can expand and tighten into the hole by itself, without using bolts to tighten the other end of the screw. Rubber design: the rubber bungs can slide into the holes easily, and when you tighten the bolts, they will squash up in the holes to make a nice tight fit, convenient to use. Universal fit: these screws fit for most standard toilet seats with top fixing hinge, especially suitable for 14 - 16 mm hole; And the way of installation is simple and convenient so they are for most toilets. Colour: black Material: rubber Size: 48mm Package Contents: 10 * Toilet seat screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.