The Sevenoak SK-MB1 DSLR Matte Box with Top Flags for 15mm Rods from Sevenoak is suitable for use with a wide variety of DSLR cameras and baseplates with 15mm rod system(cameras, baseplates, and rods are not included). It is constructed from high-grade ABS plastic, and the included flag is made from aluminum. It is used on the end of a lens to block the sun or other unexpected light source during shooting.