My Spooly v4 lets you easily wind anything onto a spool. All you need is a drill, and run it in reverse. I invented my Spooly one morning when I needed to transfer some 3D printing filament to another spool so that I could run two jobs. You slip the Spooly's bolt through the center of your spool, then screw the other end on, chuck up the bolt threads, and run the drill in reverse so they tighten as you spool. Its unique design automatically centers spools that have bore diameters from 0.25in - 3in and widths up to 4". You can always add a longer bolt or threaded rod to increase the maximum width. It will come in bright color that's hard to lose. I don't figure the color really matters for a tool like this. Your Spooly comes with the nut and bolt required, so you don't have to go out and get your own. This handy little device can be used with anything that comes on a spool. Fishing line, string trimmer line, thread, yarn, electrical wire, 3D filament, spaghetti?, etc. Contains no MSG or artificial flavors!