Features:
Powerful, versatile, and comfortable.
Extends the battery life of your DSLR camera,
Offers a secondary shutter release button for vertical and portrait photography.
Includes special function buttons for more shooting options.
Makes vertical shooting possible.
Shutter button, AF-ON, Control wheels, etc (depending on model).
It comes with a tripod mounting thread as well.
Uses 6 AA batteries (batteries not include).

Specifications:
Color:Black
Compatible with: Nikon D80, D90
Item size: 13.8 x 7.5 x 11cm
Item weight: 252g
Package size: 15.5 x 12.5 x 8cm
Package weight: 358g

Package including:
1 * BP-D80 Battery Grip
1 * User Manual