Aputure V-MatteBox creatively and flexibly change light shaping, good at blocking light. And more- Simple and elegent design, industry-standard, barn doors removable for easy portability, height adjustable to fit various sizes of cameras. Features: 1. Removable barn doors for easy portability 2. Adjustable height to fit different sizes of the camera 3. Fits lenses from 43mm to 77mm 4. Using industry-standard 15mm rods(60mm pitch-row) 5. Simple and elegant design 6. Material: Metal & ABS