Package Includes: There Are 6 Toilet Seat Screws, Consisting Of Stretch Balls, Round Cards, Screws And Washers. It Is Also Equipped With 3 Pairs Of Disposable Gloves To Make Your Use More Convenient. Stop The Seat Slider: When The Toilet Seat Keeps Moving, Replace The Old Device With Our Toilet Seat Screw Fixing Device. Toilet Seat To Firmly Fix The Toilet Seat In Place And No More Sliding On Both Sides. General: The Toilet Seat Fixing Device Is Suitable For Most Standard Toilet Seats With Upper Fixed Hinges, Helping You To Replace The Old Worn Hinges, Which Can Be Used For 14-18Mm Holes. High Quality Materials: The Black Rubber Expansion Ball Can Slide Into The Hole Perfectly. The Plastic Gasket Is Not Easy To Break. Rust And Is Very Durable Which Helps Maintain A Tight Fit. Easy To Install: Just Tighten These Plugs So They Go All The Way To The Bottom Of The Hole, And When You Tighten The Nut Up, They Will Be Pressed Into The Hole And Tightened Around The Threads To Prevent The Valve Seat From Slipping.