Be sure to add me to your favorites list 1980s Vintage Casio Replacement Part Cover for ROM Pack Compartment on Many Models PT MT CT SK, This One Has a Small Crack Covered with Clear Tape. This is a replacement part for some 1980's / 1990's vintage Casio keyboards. This is the plastic smoke-colored hinged cover piece that is found on many Casio / Casiotone models that take ROM packs. This one has a small crack in it, that has been covered with clear tape, so it's pretty sturdy as it should be and will work fine to replace yours if it's smashed or missing. This will fit the smaller PT and MT ROM pack models, the SK8 mini sampler, and I believe the full sized CT models that take ROM packs (see measurements below to make sure). These were mostly made in the 80's but a couple of early 90's models were made to play the ROM packs as well. Measurements are 4 1/8" inches x 2 1/16" inches, with the rear of the cover not including the hinges being about 3/8" of an inch. Thanks for looking, Check out my Store!