LimoStudio Photo Background Backdrop Muslin Holder (for All Types of crossbars and Background Supports) Easy Adjustment - To remove wrinkles and unevenness shown on the muslin 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. Superior Quality and lightweight (Only 1/13th the weight of the conventional muslin clamps) Fast Installation / Disassembly