Unbranded AC/DC adapter, model YD-35-060020. Photographed output specification is 6V DC 200mA.
This used adapter is in acceptable pre-owned condition with slight wear consistent with use. It is sold as is and untested, making it a good option for replacement or parts.
Approximate size is 4 in long, 3 in wide, and 2 in high. Item weight is 0.3 lbs.