This Matte Box Rail Rod Support System for DSLR Camera made of aluminum (mostly anodized black)， ABS， and rubber， has high quality. This Matte Box could be adjusted the height according to the lens of camera on the rail rod system. Top and side flags are all easily removable. Good choice!                                    Features                New and high quality<br>    This Matte Box could be adjusted the height according to the lens of camera on the rail rod system<br>    Made of aluminum (mostly anodized black)， ABS， and rubber<br>    Top and side flags are all easily removable<br>                                                            Specifications                        Condition     New    <br>          Rail Hole Diameter     0.59inch / 15mm    <br>          Rails C-to-C Distance     2.36inch / 60mm    <br>          Big Blade Diameter     9.29 x 4.37 inch / 23.6 x 11.1 cm (L x W)    <br>          Small Blade Diameter     9.29 x 4.37 inch / 23.6 x 11.1 cm (L x W)    <br>          Packing Size     10.04 x 6.93 x 2.52 inch / 25.5 x 17.6 x 6.4 (L x W x H)    <br>          Weight     367g    <br>                                                             Package Includes                1 x Matte Box Rail Rod Support System for DSLR Camera<br>