1、Strong Compatibility: The compatible caliber is 67mm, 72mm, 77mm, 82mm, and the top is designed with 2 cold shoe interfaces, 2 1/4 screw ports, and 1 3/8 screw port, which has higher expansion compatibility. 2、Improve Imaging Quality: The high efficiency extinction coating inside this matte box can effectively reduce all kinds of stray light, reflection and improve the imaging quality 3、Lightweight: The mini matte box adopts a lightweight design, which is only 135g. So the matte box brings you more flexibility and is convenient to carry. 4、Practical: The matte box has a inserted filter system and a filter safety lock on the side. Good workmanship ensures the function and durability. The matte box is clamped directly to the camera, which is firm and fast. 5、Well Equipped: The carbon fiber matte box is equipped with a 2.0mm thick filter clamp and a spare 1.8mm thick filter clamp, making the matte box support multiple lenses. Item Type: Matte box Material: Carbon fiber, aluminum alloy Weight: Approx. 552g/19.5oz Matte Box Size: 150x110x40mm/5.9x4.3x1.6in Adapter Ring Interface Size: 67mm/2.6in, 72mm/2.8in, 77mm/3in, 82mm/3.2in 1 x Matte Box 1 x 67mm Adapter Ring 1 x 72mm Adapter Ring 1 x 77mm Adapter Ring 1 x 82mm Adapter Ring 2 x 1.8mm Clamp 2 x Inner Hex Spanner 4 x Screw 3 x Fixed Connector