[DETAIL] features: 1. Lightweight and sturdy,will not fall off When you use it. 2. The handle apply ergonomics technology,comfortable and easy to open. 3. Maximum Opening Mouth is 6cm, suit for photo studio shooting. 4. Strong clamps to fit onto most background standard sized stands and backdrop cloth. Size 3.5 inch= 9*7*2.8cm��Opening Mount:4cm�� Size 6 inch= 15.7*11.2*4.7cm��Opening Mount:6.5cm�� Plastic Clips Background Clip Fixing Tools Photo Studio Background Pipe Clamp Photography Background Clips [ATTRIBUTES] - Hign-concerned Chemical: None - Electric: No - Photography Accessories Type: Cable Clamp - Hign-concerned Chemical: None - Electric: No - Photography Accessories Type: Cable Clamp - Model Number: Photography Clamp - Package: No - Brand Name: SZKOSTON - Origin: Mainland China - Features 1: Background Clamps - Features 2: Backdrop Clamps - Features 3: Photography Clamp - Features 4: Photography Heavy Duty Muslin Clamps - Features 5: Photo Booth Background Stand Clip - Features 6: Photography Clamp for Backgrounds