4Pcs Toilet Seat Screws Assortment Toilet Seat Expanding Rubber Fittings WC Blind Hole Fixings Top Nuts Screw Kit Product description Features: For installation with excellent toughness, not easy to break. Good design concept, with excellent toughness and stability. Two different sizes to meet daily needs. Specifications: Quantity: 4 pieces Material: 304 stainless steel&high quality rubber Size: M6*8.4cm & M6*5.4cm Color: silver&black Package includes: 4pcs Toilet seat expanding rubber fittings 2pcs expansion screws with plastic plugs 2pcs extra stainless steel washers. How to install the toilet seat hinges fixings? 1. Just push them through the holes. 2. Put on the supplied washers. 3. Screw from the top. Warm Tip: 1.Please confirm your old toilet seat screws with our size before buying. 2.Do not tighten the bolt so much it pushes through the washer. 3.Please allow small errors due to manual measurement. Thanks for your understanding.