EASY TO USE: Insert these toilet seat screws into the toilet mounting holes. The rubber grommets feature a threaded section, allowing them to be pushed directly into the holes on the top of the toilet pan. Tightening the screw causes it to expand and secure itself in place, eliminating the need for a bolt on the opposite end. This design offers convenience and saves time. FOR WOBBLY TOILET SEATS: Use these toilet seat fixing screws to replace the ineffective plastic inserts commonly supplied with new top-fix seats. Fits most UK standard toilet seats with top-fix hinges. Suitable for 14–16mm holes. ONCE AND FOR ALL: Installation of the toilet seat and top-fix hinge hardware is required only once. These fixings provide a long-term solution, eliminating the need to address loose or unstable toilet seats for years. QUALITY MATERIAL: Made from rubber and metal, the rubber grommets resist dirt and wear, offer superior expansion, and are durable. Metal screws are protected by the rubber covering, reducing the risk of rust and extending service life. 100% GUARANTEE: All products include a 12-month warranty. We offer a no-questions-asked replacement or refund guarantee. We are committed to delivering high-quality products that meet your expectations.