Posted by a reviewer on Amazon

Coil on a plastic spool inside of the cardboard pullbox

Posted by a reviewer on Amazon

While this brand is not near the costliest coax available id say its tough and heavyduty enough for most any application

Posted by a reviewer on Amazon

Note a little trick i learned on unrolling wire from a pullbox take the spool out of the box before you start and notice where the edges of the spool lay on the bottom of the box youll see a couple of long indentations in the pasteboard box bottom take a candle and rub wax onto these two lines liberally and also around the edges of the spool where they touch the bottom and replace the spool