Bxian 3PCS 107x20mm Heavy Duty Spring Clip Black Metal Rubber Hinge Clamp Suitable for Photography Background Stand

["High-quality materials: Made from high-strength steel, these clamps are wear-resistant and durable. Powerful springs provide a firm grip, whilst rubber pads protect your equipment.","Ease of use: These clamps feature a simple design with an easy-to-operate locking mechanism. Simply place the item in the clamp, squeeze firmly to lock it in position, and you're done. Releasing the item is just as straightforward.","Strong, non-slip grip: Equipped with rubber pads on the lower jaws, they hold items securely in place, preventing slipping or scratching, and providing peace of mind during use.","Versatile applications: These heavy-duty spring clamps are ideal for use with backdrops, paper, mirrors, woodworking or outdoor projects. They are also essential tools for studios or workplaces.","Dimensions: Height: 107 mm/4.21 in. Width: 20 mm/3.15 in. Opening: 55 mm/2.17 in."]