Holds the leap frog creatr tubes to the sides of the 3d printer. I know there are other clips made for the lp creatr (for example: http://www.thingiverse.com/thing:222488), I just enjoy making my own design. I also like the look of this one more.ABS Green: Extrusion multiplier: 0.95 Skirt offset: 0 Skirt outlines: 3 External fill pattern; rectilinear Infill: 15% Infill angles: 45, -45 Support: 30 % Support infill angles: 45, -45 support pillar resolution: 1.00 mm bed temp: 80 C extruder temp: 195 C Add support in between.