Here is a great invention for the guy back in the 1970’s that owned an 8-track player but wanted some FM -stereo music as well as playing an ‘all new’ music cassette, without going broke on buying a new car or music system. So this quality build set of Clarion (Japan) 8-track adapters made it possible! Not tested, used condition. The Cassette adapter measures ca. 19 cm or 7 1/2 inches long and the FM stereo adapter measures ca. 15 cm or 6 inches long. Great pieces of music history! Check the video to see an 8-track flash back!