3D printed  moss pole includes several modular components to allow for customization. These moss poles are made from PLA (Polylactic acid) which is primarily derived from corn starch. 
 
The starter sets include a cap, base, brace, and soil spike. 
Medium- Large Pole Sizes: 3x 190mm poles with a diameter of 50mm. 
Small Pole Sizes: 3x poles, 75mm, 125mm, and 175mm with a diameter of 25mm. 
See diagram images for more information.
 
Cap - This screws on the topmost pole to cover the exposed thread (for aesthetics)
Base - Screws into the bottom-most segment to stop moss or over the substrate from falling out of the bottom
Brace - This is the first mounting piece and has arms that can be expanded to fit your pot. Place the brace within an empty pot and expand the arms against the inside face and screw tight. This makes the pole very stable. As it has 3 arms the brace does not need to sit centrally and can be placed asymmetrically. Fill around the pole and brace with your preferred soil/substrate and add your plant. Attach the poles as required. 
Soil Spike - If you are not ready to report and therefore the brace can't be used, the soil spike can be screwed to the bottom of the pole and stuck into the soil. CAUTION - the point of the spike is sharp, keep away from eyes, sensitive areas, and children. 
For optimum height and pole stability, the ideal setup would be to use the brace buried in a pot. One pole is screwed below the brace with the base filled with loose stone, this will be the counterweight but will allow drainage, the rest of the poles and any extra poles are screwed above and filled with moss or your preferred substrate. The cap is screwed on the end until ready to expand.
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Cautions:
The soil spike is sharp, be very careful
Some loose lines can be seen around some of the screw threads, pull these off with fingers or tweezers gently.  
When screwing parts together the first time screwing together could be a little stiff, tease it gently unscrewing a little before going again. 
When screwing poles together, hold the parts close to the ends which are being attached together, this will avoid strain on the helix which could cause the pole to snap.