【Product Information】 The toilet seat mounting kit is made of heavy-duty plastic, rubber and 304 stainless steel. Excellent toughness and stability to secure your toilet cover. Accessories needed for the toilet: 1 pair of white screws, 2 pairs of black screws for the toilet seat. 【Product Benefits】 These toilet seat screws are universal and fit 14-18mm openings. Fits most standard toilet seats with a top hinge. 【Note】 Be sure to compare the dimensions of your old room with ours before purchasing! You can see the exact dimension in the photo. 【Easy Installation】 Easy assembly in minutes. Just remove the old screws and insert the new screws into the toilet seat. 【What You Get】 3 pairs of replaceable stainless steel toilet seat fasteners. Robust, reliable and durable toilet seat mounting kit.