Highest quality Mounts are skillfully crafted for the roof, deck, house, mobile, small dish, satellite and off-air VHF/UHF antenna, and other outdoor applications. Available in various lengths, J shaped antenna mount with a pivoting foot, reversible pole, and a wide base for enhanced antenna stability and flexibility, has a pipe of 1.66" (42.1mm) OD. Made of 18-gauge steel, its 3 - 5' super sturdy heavy-duty tripod includes a 28" long center universal support which accepts up to 2" OD pole and swivel feet rotate to accommodate pitched surfaces. Perfect Vision’s premium galvanized steel pipe to pipe clamp fits 1.5" to 3.5" or 2-3/8" to 5" OD pipes, while taper slider brackets of hot-dipped galvanized steel allow for a 12" stand-off. Plus, the professional-looking roof mat for NPR mounts has a thickness of 0.130". ISP Supplies is a certified distributor of Perfect Vision offering its certified Mounts at cost-efficient prices.