Description This convenient three-axis hook background photography support mechanism can improve your work efficiency. Premium materials and exquisite craftsmanship ensure its durability. The three-axis design allows you to have three different backgrounds at once, and its manual operation facilitates you to better locate the ideal height. With it, you can easily adjust the photography background and create more photographic artwork! Details Pre-drilled Holes: They facilitate you to quickly mount the brackets on the wall or ceiling to save time. Detachable Chains: The detachable chain makes it easy for you to remove the broken link in case of accidental breakage, and then refasten it for reuse. Application It is suitable for small photo studios, home studios, photography work, and more. It is compatible with background paper, photographic cloth, and PVC cloth. Installation 1. Punch holes in the wall with the same diameter as the expansion screws. 2. Fix the hook bracket on the wall or ceiling with the expansion screws. 3. Insert the expansion stick into both ends of the metal/PVC tube and rotate the wheel knob to tighten them. 4. Put the expansion stick into the hook to fix it. 5. Put the chain on the gear to make the gears fit into the chain. 6. Hang the weights through the chain and pull the chains to elevate the backdrop. Specification Color: Black+ White Material: Iron, Plastic Process: Baking Paint Applicable Tube Diameter: 4.8cm/1.89in Hook Spacing: 9cm/ 3.54in Each Expansion Stick Total Length: 32cm/ 12.6in Each Expansion Stick Knob Diameter: 5cm/ 1.96in Each Bracket Size: 33*4.8*20cm/ 12.99*1.9*7.87in Package Size: 37*26*21cm/ 14.57*10.24*8.27in Gross Weight: 5.69kg/ 12.54 lbs Net Weight: 4.2kg/ 9.26 lbs Package Included 2* Mount Brackets with Hook 3* Chains 3* Weights 3* Expansion Sticks 3* Expansion Sticks with Gears 8* Expansion Screws 1* English Manual Notes 1. Please note that the package does not include backgrounds and crossbars. 2. For safety reasons, if installation is required on the ceiling, it is recommended that the ceiling be a concrete structure rather than a wooden or other unstable ceiling. 3. Normally, the expansion screw will blow up after the force is applied. 4. Please read the operating manual completely before use. And pay particular attention to the safety instructions included. 5. Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering. Key Features Selected Materials: It is made of premium plastic and iron, and the surface is treated with a baking paint process, which is rust-resistant, scratch-resistant, wear-resistant, and sturdy, ensuring long-term use. Smooth Lifting: Its smooth chain and gears create little friction during lifting, allowing you to raise and lower the backdrop easily.