The rings provide consistent separation force and are made of Nickel Titanium, ensuring a longer lifespan than stainless steel rings. The teeth of the rings contribute to excellent retention on the tooth. Rings and wedges can be overlapped and work well in complicated Class II restorations, such as those missing a cusp. The matrices, wedges, and protective wedges are anatomically designed to provide better sealing and tighter contacts. CONTENT: 100 matrices (25x35 mm, 25x45 mm, 25x55 mm, and 25x65 mm), 75 wedges (25 small, 25 medium, and 25 large), 30 protective wedges (10 small, 10 medium, and 10 large), 1 universal ring, 1 small ring, 1 clamp, 1 forceps.