Latch allows door to be partially opened for identification while providing privacy and security for the guest. Zinc die cast construction. Silicone pads provide additional protection for the door and also act as a silencer. An optional Rivet Nut can be applied for a more secure and rigid installation.(not included) UL Listed. Meets NFPA 80 5.2.13.3 and NFPA 80 5.2.4.2(9). ADA compliant.