to be quite honest I like the pencil floats for my glow sticks . I am not a fan of the weighted bobbers ....but that's just me ....
anyway the little natural rubber boot that comes in the package with the glow sticks fits on the "quill" that sticks up on top perfect and I can assemble one in the dark in a few seconds .
the cost is about the same 3 or 4 for 4 bux .......