BHP Tackle Portable Wind-On Jig

From BHP: 

"The BHP Portable Wind-On Jig is a heavy-duty jig that can be used anywhere. The jig collapses and stores in a Plano 3700 (included) along with your other wind-on tools. The connection is held tight with no damage, ideal for serving with the Beiter Winder. Velcro strips are included to provide adhesion on carpeted long-range rigging tables. Working room is 18"."

Here is friend of GZ Katie Sawyer on how to make a Wind-On Leader: