Door Weight: Suitable for medium doors, typically rated for 40-65kg.Material: Constructed from high-quality aluminum alloy with a rack-and-pinion design for smooth operation.Adjustability: Features dual independent valves to control both sweep speed (from full open to ~10°) and latch speed (the final ~10° to fully closed).Installation: Non-handed, meaning it can be installed on both left- and right-swinging doors. It supports standard, top jamb, and parallel arm mounting.Certifications: Certified under ISO 9001, 14001, and 45001 standards