Canon BG-E4 Battery Grip for EOS 5D DSLR with AA battery magazine, Excellent.

Description

Canon BG-E4 Battery Grip for EOS 5D DSLR with AA battery magazine.
This grip is in very good to excellent condition.  It was been used very little and is functionally perfect.  There are minor signs of use visible in the photos.
Product description from the interwebs:
The BG-E4 is a new battery grip designed especially for the EOS 5D. Constructed with the same magnesium alloy as the camera's exterior, it has a solid and comfortable hold. The grip can accommodate two BP-511A/514/512/511 battery packs or six AA batteries . The Battery Grip BG-E4 features a shutter release button, AE/FE lock button, AF point selector and main dial to enable comfortable use of the camera when held vertically.
The Canon BG-E4 Battery Grip for the
EOS 5D Digital SLR Camera
adds a vertical shutter release to an already robust camera. This grip is compatible with up to two of
Canon's BP-511A battery packs
or, alternatively, a set of six AA-size batteries, for increased shooting capacity and greater convenience when traveling. In addition, it features an AE/FE lock button, AF point selector, and a main dial to enable comfortable use of the camera when held vertically.