VONOTO Camera AA battery holder Box Adapter Bracket for Pentax KR K30 K50 K500 39100 D-bh109 DSLR VONOTO Camera AA battery holder Box Adapter Bracket for Pentax Demension: 57 x 35 x 44 mm For Pentax KR K30 K50 K500 39100 D-bh109 DSLR AA battery can be found in everywhere, so if you are travelling and your camera is out of electric, this will be a perfect choice for your travel time . Easy to use and carry