ADVANCED ENGINEERING - 2 products in 1. Combines a heavy duty hinge and door closer in 1 product with option to add a hold open to hinge FULLY ADJUSTABLE - Complete adjustability of closing force and closing speed. Set it to close exactly how you need DURABLE - Stainless steel construction, no hydraulics, no leaking oil. Fully weather resistant. 1,000,000 cycles tested to provide many years of maintenance free operation VERSATILE - Fits 2, 3, and 4 inch gate post sizes. Maximum loading up to 130 pounds (59kg). Multiple sizes of leave support COMPLIANT - ADA, UL Listed R26997, ANSI/BHMA A156.17 Grade 1