DSTE&reg; 4pcs yellow Battery Storage Case/Organizer/Holder Protection Cover for Canon LP-E4 LPE4 EOS-1D C EOS-1D Mark III IV EOS-1Ds Mark III IV Digital Camera Battery Protects reliably against scratches, blows, and wear Environmental ABS (Acrylonitrile Butadiene Styrene Plastic) Package Details: Cover x4 Batteries are not included Quality Weather Resistant Plastic Battery holder