This is an upgraded version of SMALLRIG Cage(SONY A7S A7R A7) 1518. We added a cold shoe adapter on top plate, which provides a connection on top, so that your camera can be attached more steady than only being attached with a fixing screw on the bottom plate. Specially designed for SONY A7S A7R & A7, multi mounting points 1/4″on top and side plate for accessories. Anti-twisting screws on the bottom plate to fix the camera. Please note that it doesn’t fit for SONY A7 MarkII and A7 RII. Material: Aluminum AlloyIncludes:1x Top Plate – 16451x Bottom Plate – 16631x Side Plate1x Cold Shoe Adapter – 15708x M4 Screws1x 1/4″ Screw2x Hex Spanners Net Weight: 170g ? ? Installation Instruction: ?