The Nikon MD-12 vertical grip comfortably supports camera operation. Nikon MD-12, a battery holder for film cameras. - Model: Nikon MD-12 - Country of Manufacture: Japan - Included: Battery holder Thank you for viewing. *It is junk. *I rarely used it, but when I tried to use it recently, it stopped working. *There is no corrosion or battery leakage on important contacts such as the battery case. - Model: Nikon MD-12 - Country of Manufacture: Made in Japan - Switch: ON/OFF switch - Design: Vertical grip Thank you for viewing.