As specified within the rules of the games, the Two Ball and Delta goal totems may be of any shape but circular in cross section throughout their entire height, no shorter than 120 centimetres, standing on a 15 centimetre base, and no less than 20 centimetres at their greatest diameter. The totems' centres of mass may not be lower than 30 centimetres above their bases. Variations on the rules permit other objects to be used as totems.
•Are the totems, as specified, stable standing on their goal surfaces?
•Or are they too unstable for fair and reasonable play?
•Do they make a sufficient but not too easy a target for ball handlers to throw at?
•Are they defendable by the goal tenders without undue risk of a goal tender accidentally knocking them over?