Product Description Spring Clamps:4.5 inches long.3/4" x 5/8" rugged, pivoting pads.Maximum Opening: 2 inch mouth.Product Description Background clips:Superior Quality and lightweight (Only 1/13th the weight of the conventional muslin clamps,The maximum length is 15 inches)Suit for all types of crossbars and background supports,Consist of stretchy cords.Consist of metal clip, stretchy cords, locking release tabs and hook-and-loop part. floor. Package Includes:(6) x 4.5" Photography Muslin Backdrop Spring Clamps(6) x Background clips Kindly Note:In order to more stronger the new clips are painted closed and might take a little extra squeeze to break that bond for the fist time but not an issue for the next time and they will work well to the backdrop.