We have a 4 piece lot of 3 film recording tapes (2 in plastic wrap - Silvertone brand) and 1 heavy duty plastic film case with reel inside.  The 3 film is #M Scotch, the box shows a bit of wear.  The 2 new ones the boxes measure about 5 1/4" square with a 5" reel, 600'.  The scotch tape is 5 1/8" square with 5" reel 600'  the tape seems in good condition - I have no idea if this is recorded on already or not.  Lastly is a reel case which is plastic measuring about 6 1/4" square x about 5/8" in H.  It shows some general light wear.