Colour: Black material: plastic size:15.07*8.1*5.03cm Package Contents: 1x battery grip 1x Li-ion battery holder 1x AA battery holder 1x user manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. The MB-D12 Series Multi-Power Battery Grip allows the D800, D800E & D810 to be powered by two EN-EL15 batteries -- one in the camera body in the MB-D12 -- effectively doubling your capacity. Effectively doubling your capacity Comfortable vertical grip with an additional shutter release and scroll wheel With the included AA battery holder, users can also power the camera with 8 AA batteries Allows the D800, D800E, and D810 to be powered by two EN-EL15 batteries