4 Track Tape 1/4 inch, 4 Channel 4 tracks, Contains: Erase # 50664110, Record 50664250, Playback Heads, Mounting plate with spring and screws, Heads appear good but surface corrosion on mounting plate of head cover, used good condition, salvaged from unit, frame head housing is rusty, Heads can be lapped near perfect, ask on call for more information, #7+ Condition