LimoStudio 2 types [6 Pcs] Photography Backdrop Support Spring Clamp for Background Muslin, Canvas, Paper, Chromakey Screen, Heavy Duty Clip, Photo Studio, AGG1243 [3 x] Backdrop Support Spring Clamp 3.75 Inch Long | 2 Inch Opening Jaw [3 x] Backdrop Support Spring Clamp 4.5 Inch Long | 2.5 Inch Opening Jaw Multi Functional: Photo Studio / Woodwork / Artwork | Rounded Handle for Comfortable Grip