KeeHatch® Mightylight roof hatch rail is an “exact fit” for Bilco, Babcock Davis and other hatches. Made of aluminum, it weighs only 35 lbs., has few parts and is easy and fast to install by one person with the fastclip™ installation process. KeeHatch Mightylight meets all OSHA Standards and compliance codes.Safety Rail Source & Kee Safety, www.safetyrailsource. com, (877) 723-3766.