Heavy Duty Muslin Clamps 6-pack Set of 4.3 inch for Photography Photo Studio Backdrops/backgrounds/Photo Paper/Light Reflector/Woodworking (6 Pack) Pack of 6 clamps . Each Clamp size : 4.3 inch * 3.1 inch Works perfectly for Muslin, paper, and even canvas backdrops Rubber ends to help protect your stands and backgrounds Clamps onto most standard sized stands These clamps are perfect when you need to attach any kind of background to a support system