CREALITY UNIVERSAL SPOOL HOLDER Four versions for the same price ... you choose V1.-Original Version Spool Holder V2.-It´s a little bit shorter than the original and with a larger diameter,improves better extrusion. V3.-Smoother and better reel grip, completely redesigned and screwable (two pieces). Large-diameter roller design reduces shaking. * V4.- The better reel grip, unique design with two bearings very easy to print and use ( Four pieces). Large-diameter roller design reduces shaking and the the bearings make the filament spool spin very smoothly. * Compatible models : K1 , K1 Max , All Family Creality Ender 3 : ( S1 , V2 , V3 , Neo , SE , CR-6 Smart , CR-10 Smart and Pro, CR-30). Easy to print ... Need supports. (*) V3 and V4 in one Stl file and Zip in Parts