Andoer Multifunctional Metal Spring C Clamp Clip Backgrounds Backdrops Reflectors Holder for Light Support Extension Arm Photo Studio Perfect to hang your backdrops, reflectors or other props onto your support stand for better shooting. Heavy-duty metal construction provides secure gripping. With rubber pads, it can protect your props from scratch. With a solid C-clamp, the clamp can be attached to a light stand, extension arm and so on. The maximum clamp size is 3.5cm.