PLR Battery Grip For Nikon D40, D40X, D60, D3000, D5000 Digital SLR Cameras Attaches Through Cameras Tripod Mount And Battery Compartment, Durable Rubberized Suface Improves Grip & Handling Intuitive Placement Of Key Camera Controls Makes Portrait Shooting As Easy As Landscape Shooting Provides Up To Double The Shooting Time When Used With EN-EL9 Batteries Or Equivalent Can Also Be Used With Standard AA Batteries Thanks To Included Speedloader 3 Year Limited Warranty