The simplest configuration is a single Point.
All Points have a 3 inch diameter and a height of just over 1.5 inches.
There are three different Points: TolaPoint 750, TolaPoint 500 and TolaPoint 375. The number refers to the diameter of the tip. Your 750 has the roundest tip, your 375 the sharpest.
The wide base of the Points makes them stable and their exaggerated bell-curve makes them accurate and precise.