DSLR Battery Grip are made from the highest quality parts, the Battery Grip are tailored made according to the original size, whether the Battery Grip appearance, size and quality are the same as with the original. Every Battery Grip should be under strict quality control including filtration and safety testing of voltage,capacity and Battery Grip core before leaving the factory, and has passed the authentication of CE, UL, EMC, CQC, ROHS, etc.