(1) The side flags can adjust the upper angle to work with the upper flags so as to achieve the best shading effect. The upper and side flags are all made by metal and baking finish with good quality. They can be disassembled and assembled easily and quickly. (2) Dimensions: front-end size is 245mm*160mm, the back dia is 140mm at the most. Fit for lens with verious diameters : 58mm, 62mm, 67mm, 72mm, 77mm, and 82mm (3) It can be used with any sort of wide angle lens such as 35, 28, 24, 21, 18 and 14 mm and even fish eye lenses; (4) Two 360 degree rotatable filter stages, two 4*5.64 filter trays, two 4*4 filter sheets, four rubber donuts. (5) It can adapt to the 15mm support system and the height of the Matte Box can be adjusted quickly to meet the position of the lens.