This anchor is for quickly holding a balloon in place, like on a table, without using any other material or tool to tie it down. The key element of the design is the size, shape, and spacing of the three pillars that serve as anchor. When the neck of a balloon is wrapped in a basic hitch knot, the balloon holds itself upright. Large flat base is for a counterweight, like a 20-ounce dumbbell disc.Made for easy printing in any material at any density.