Specifications:
This keyboard is a very rare, very unique ergonomic keyboard made by IBM. It is a fully adjustable, mechanical buckling spring keyboard that is considered one of the very best ergonomic keyboards ever constructed. No other ergonomic keyboard approaches it in terms of quality and feel. The keyboard can be adjusted to various heights to accomodate the most comfortable typing angle to reduce and alleviate stress on your hands, wrist, and arms. The space bar is split with an erase eaze feature.

This keyboard is in very good used condition, and has been tested to work 100%, including keys, ball joint, and adjustable feet. These keyboards are ultra-reliable.