Movie camera chew this stuff up at 90 ft a minute. most places don't bother with lengths of less than 100ft. Gravy is a end of a 1000 ft roll that is over 400ft. (the 1000ft rolls are on a three inch core generaly, while the 101 to 400ft are on a 2 inch core. 100ft rolls traditionally come on a spool, but may come on a 2 inch core.