3rd party battery grip that will fit 20D,30D,and 40D. This grip is the one with the small battery door. Battery grip is in great working order. The only blemishes are a few little scratches by the shutter button but these do not affect function at all. You can see them in one of the pictures below. Comes with battery grip, and both Li-ion and AA battery trays as seen in first picture. Selling because I find it too bulky. Sells for $70 + shipping on ebay. I'm asking $50 shipped in ConUS.