You are bidding on used but in excellent condition Newage Legendary Heroes Beelzebul H16, Mammon H17, and Mephisto H18, aka Transformers G1 Ramjet, Theist, and Dirge.
The figures have been transformed once to robot mode and back to plane mode, displayed in a sealed cabinet out of direct sunlight, and comes with all its original accessories including space bridge parts and box. The instructions are not included but this video is an excellent guide to transformation: https://youtu.be/EJZtRxO-XQI?is=QL5FdINGlu_xv6lg