The system set provides concealed, clean openings for an elegant, timeless look. Equipped with several positional adjustments, as well as customization for the closing and latching speed, and a backcheck that allows for a quiet close that produces no noise. It has an impressive UL10C fire-safety rating, and is suitable for ADA use. Ideal for hotels, office buildings, residences and safe rooms, applicable for wood, hollow metal and fiberglass doors.