The Triangle Hoops Gear Set provides explores hoops that have one side triangular.  This theme creates a lot of interesting possibilities.

The pieces in the Triangle Hoops Gear Set are:
160/120 (180/60) triangle hoop
120 (180/60) triangle / 80 hoop
80

This gear set also includes a set of just the medium doughnut pieces for making parallel lines.

What do the numbers in brackets mean?

Shop listing for The Triangle Hoops Gear Set