9 X backdrop pole; 10 X O ring Secure Mounting: Holder attaches firmly to wall/ceiling/light stand, keeping paper backdrops taut and wrinkle-free. Thread the chain through the weight The MagicLine 3 Roller system combines three 118-inch crossbars with a wall, ceiling, or light stand mounting design. It emphasizes a quick-change capability with a twist-lock mechanism and a robust metal bracket construction 2 x light stand adapter , 3 x chain , 3 x weight Lighting Kit Photo Backdrop Stand Photography Backdrop Support System - 118-Inch Wide, 3 Rollers With Chains, Wall/Ceiling/Light Stand Mount Backdrop Roller System Green Screen There is expansion stick in roller with gear or roller without gear Thread the chain through the gear of the roller and put it into the hook of bracket Durable Construction: Sturdy materials ensure long-lasting performance. 3 x roller without gear The wall/ceiling/stand mounted design keeps your backdrops wrinkle-free and securely in place. Photo Backdrop Stand Photography Backdrop Support System - 118 Aazon.co : JINHZIXIU 6 Roller Electric Backdrop Roller Syste... Insert the roller into backdrop pole, rotate the handle to expand its expansion stick to fill up the backdrop pole for securing Stainless Steel Tube Crossbars Included: There are 3 pieces 3 meters stainless steel tubes, each 3 meter tube is composed of 3 sections short tubes (each short tube 39., 4in/100cm long with diameter 1., 9in / 4., 8cm) , it is easy to assemble by just twisting them. Switching out backgrounds is a breeze with the convenient roller system. What's in the box 2 x bracket , 8 x anchor bolt Stainless steel tubes, just twist to lock them Install the light stand adapter on the bracket for C stand installation
