Neewer Set of 8 Photo Video Studio Background Backdrop Clips Holder, for All Types of Crossbars and Background Supports Attach quickly and easily to crossbars or light stands. Simply attach the screen to the clips at even intervals to keep the screen tight and wrinkle free. Multi-functional - In the active position, the user can slide the muslin holder up and down the stand to their best interest. Precise and Fast Adjustments. Fast Installation / Disassembly.