High-quality and professional Clamp-On Matte Box from the reputable brand, Wooden Camera Designed specifically for 110mm lenses with a larger 4x5.65' filter size for enhanced versatility Lightweight and compact black anodized aluminum construction for easy portability Features a 3-stage filter stage, allowing for easy filter swapping without removing the matte box Comes with a removable top flag made of lightweight carbon fiber for lens protection Rear opening can be swapped with clamp-on backs of various diameters, and can be converted to a swing-away version