ZLY Double Roller Wall Mounting Manual Background Support System,Photo Background Ceiling Holder,for Photography, Live Streaming, Including 2 Double Hooks, 4 Expand Bars, 2 Chains，Eight Screws

【High Efficiency】 The balance chain (random color) and gear assembly in the manual backdrop wall mount can raise and lower the background quickly and easily, and the portable operation saves time and effort. 【Space Saving】There are 2 background wall rollers that can hang 2 different backgrounds at the same time. Easy to install, easy to operate, the background is rolled up, it does not come with a center pole and background. 【Dual installation】Humanized dual-use design, easy to set up, can be fixed on the wall or ceiling, you can also use a desk lamp pole, manual backdrop roller system to meet your needs. 【High quality material】Manual photography background system, using high-quality metal materials, with good wear resistance; do not need to be disassembled often, is an expensive alternative to motorized roller system. 【Compatibility】 Double-roller wall-mounted manual background support system for 1 3/4 "" to 3 1/8 "" diameter pipes, compatible with background paper, photographic cloth and PVC cloth, etc. It is an ideal kit for photography studios or home studios