I just measured these straws with some digital calipers and they are 8 mm in diameter. They are buoyant enough to hold up at least 3 7/0 hooks as shown. You can tell from the sink drain that they have a pretty wide hook gap.
They also have a generous offset
If anyone uses that really super fine EP pearlescent stuff, can you tell me the best way to get it apart without balling up the whole hank of it?