This item is an accessory. It must be rented with a non-accessory item.
The Nikon MB-D18 Multi-Power Battery Grip allows the Nikon D850 to be powered by two EN-EL15a batteries simultaneously - one in the camera body and one in the grip - effectively doubling your shooting capacity. The MB-D18 also provides a comfortable vertical grip with an additional shutter release and scroll wheel for easy access to the camera functions when shooting in the vertical orientation. It is also fairly compact, with dimensions of 5.9 x 2.9 x 1.7" (15 x 75 x 45mm).
Please note that the grip may only be rented with cameras or other gear and not as the only item in your order.