The Matthews BM1™ Mounting Kit will enable endless lighting opportunities when it comes to your battery powered E26/E27 lightbulbs. Multiple threaded pins allow your bulbs to interface with 5/8" (16mm) and 3/8" (9.5mm) receivers found on C-Stands and standard grip hardware. The Scissor Clamp is a terrific solution when working in locations featuring drop ceilings such as office buildings, hospitals, schools and more. The 2.6" (66mmv) rubber coated disc magnet allows you to mount onto steel beams, filing cabinets, metal architecture.