The universal retractor is manually stretchable with a gear ratio of 1: 160. Used to wind long tapes, stickers, labels and anything else on the prepared reel. The winder operates thanks to a torsion spring which is able to rotate the main gear three times during winding. As a result, the output shaft rotates 480x. The prototype was printed on the TRILAB DeltiQ XL printer. If any component cannot be assembled, it is necessary to cut the edge with a knife.