Sit-Tight Assemble the hinge with the bolt in place and peel off the protective film. Align the hinges to the toilet pan and push hinges in place. Screw the seat to the toilet pan using the supplied fixings. Croydex Sit-Tight Huron Toilet Seat, White Double fixed to prevent movement, this revolutionary Sit Tight™ seat will not slip out of place. Made from durable polypropylene this elegant seat offers an effortless way to incorporate modern styling into your bathroom. Also compatible with any standard UK toilet pan, there’s no need to worry about the seat not fitting. Installation is extremely easy. Simply peel off the protective film, position the self-adhesive hinges and tighten into place. Polished hinge covers clip into place for a stylish finish. Easy to keep clean, the seat has an anti-bacterial coating that prevents the spread of bacteria. No more movement grip pad technology Adjustable hinges fit all standard toilets (suits toilet pans with hinge centres between 120 and 200mm)