4x5.65" DSLR Matte Box Dual Filter Trays for 15mm Rod Sytem DSLR 5D 7D 650D 5DIII by Wmicro 4 neoprene donuts to fit lenses of varying diameters (diameter of openings 51mm, 64mm, 76mm, 102mm - additional sizes can be cut from supplied donuts) 2 Dual-purpose filter trays, supporting both 4x4 and 4x5.6" filter sizes (both allow rotating 360degrees) Complete with Top Flag and two adjustable side flags in Aluminium (all detachable) Precision engineered Swing-Away mechanism for quick lens changes This matte box can be adjusted according to your shooting needs