The Madison Ultra-Fix Silentium soft close seat is designed for universal pans. The environmentally friendly American Innova seat closes slowly and silently, preventing slamming and pinched fingers. The chrome-plated hinges add a stylish accent to your bathroom and adjust to help achieve the perfect fit to your pan. This seat stays tight with Ultra-Fix: the patented fixing system that keeps your seat tight. No more shifting or wobbling on the pan!