Spring clamps are very common carpentry tools used to hold two or more items together to prevent movement. They work by creating a controlled and powerful force in its opening by compressing materials together and holding them firmly and securely in place.But who would have guessed that holding two pieces of material together could get so complicated? With countless variations of clamps, it can get hard to keep track of which one to use for your job.Our multi-purpose nylon spring clamp should be your best solution! It is mainly used to clip and attach paper, cords, sheets, and other items together. It is constructed of reinforced nylon for strength and features swivel pads at the ends to adjust to irregular shapes without marring the surface. It is a great spring clamp for arts crafts carpentry, photography studio backdrops, green screens, and countless other versatile indoor uses. Temporarily secures plastic sheeting, tarps, covers, fabric, and photography backdrops.Note: Do NOT use outdoors or leave in the sun as the material will slowly lose strength with long exposure to harmful UV rays.The wide opening allows the clamp mouth to pass studio poles and rods but clamping thick items at the opening limits (2.58 in) for an extended period of time should avoid.Specification:Color: BlackSize (H x W): 4" x 2.95"Maximum Opening: 2.58"inch mouthPackage Includes: 12 x black clampsPackage Content:12 X Muslin Heavy Duty Spring Clamps w/ Movable Adjustable Teeth - 4 inch Premium Nylon Clips Grip for Woodwork/ Artwork/ Backdrop/ Photography Studio/ Home Improvement Project, Black