Bullfix Heavy Duty Plasterboard Fixings are a revolutionary way of hanging heavy objects to plasterboard, including TV brackets, radiators, shelves and cupboards. They are strong because of their smart and reliable patented wing design, which easily hook behind any plasterboard, including Stud, Dot and Dab, and Insulated Plasterbaoard. The starter kit is provided with the 20mm drill bit, screws and fixings for ease of installation. Holds up to 133kg*.