I ship a lot of things and nothing is more frustrating than the roll of tape falling off the spool or moving just enough to wrinkle the tape so I came up with this replacement spool that locks the roll of tape to the spool using a 3mm bolt. There are two different versions that fit various tape dispensers. A roll of tape is pressed onto spool and then locked in place by tighten the 3mm screw, to remove spent roll loosen screw and pull old roll off. Simple as that.... I've been using these for about a year and they work awesome.Spools printed as show (face down) with minimum supports. The Locking Name plates where printed on a single extruder and just paused at the lettering layer and the filament was then changed to the next color.