The 2-round is great for holding 2 or 3 poi. Each round holds 1 ball or poi head, while the fork holds 1 stick, club or poi knob. The fork can also be used like a hook for poi loops, nunchaku and whatever fits.
Mounts onto any base or bin, but it's great on a Triangle as they're compact.
Each round is 60mm diameter. Each fork is 23mm wide x 20mm deep. 88mm spacing (center to center)