Excellent MaterialThe expansion ball is made of black rubber and the long screw is made of stainless steel. Sturdy and durable, anti-rust, anti-corrosion, anti-slip, anti-aging, long service life, better than most plastic fasteners. SizeBlack expansion ball diameter: 1.8cm/0.7inch (unexpanded state), length: 6.4cm/2.52inch. The screw length is 8cm/3.15inch. Includes 2 toilet seat fixing screws, enough to meet your daily replacement needs. Easy to Use: Screw the toilet seat hinge into the top hole of the toilet lid, then tighten the expanded screw and screw it into the hole to ensure that the toilet lid will not loosen again. Perfect Fit: The rubber stoppers slide perfectly into the hole, and when you tighten the bolts, they tighten into the hole for a tight fit. Secure the toilet lid. Application: Suitable for 14-19mm toilet seat hole. Toilet seat accessories can be used for damaged or old toilet seat hinges. Fits most standard toilet seats with top fixed hinges. Specification: Material: Rubber and stainless steel Color: Black Size: Rubber sleeve: 6.4 cm/2.52 inches Metal screw: 8 cm/3.15 inches Package Contents: 2 x Universal Toilet Seat Screws Note: Other items are not included, the color is based on the first picture, and the other pictures only show the effect. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!Welcome to meet