100 feet of #18 "X" Twisted Cotton Cordage "Staging Twine" wrapped into a twine ball. This cotton cordage has multiple purposes. aka Chalk Line Balls
When it comes to crabbing use this cordage to tie-down baits into crab traps or tie to a lose bait with sinker below as a drop-line for crabbing.
Often to help prevent plastic or composite spinning reel from cracking. A few wraps of cordage are used as a base layer on the spool arbor to help absorb the stress and strain of the compression created by monofilament main lines.