Description:it is 100% Brand new and high quality. For V-shoe mount battery. It is a device which can connect the battery and videoing devices together.It can power an onboard camera light or broadcast accessory. Feature: Material:ABS+Zinc+ alloy+Aluminum+Brass Pin+Iron+ Spring Package included: 1x Battery Back Pack Plate Adapter for Sony V-shoe V-Mount V-Lock Battery External,including 4screws