The 1st bead is a 3mm dangle bead.
It is just here to show size relevance.




The 2nd bead is a #11 Czech bead.
It is about the same width as the Japanese bead but a little shorter.
It is not a wide as the Delica bead, but about the same height


The 3rd bead is a #11 Japanese bead.
It is the biggest of the 3 in both direction



The 4th bead is a # 11 Delica bead.
It is narrower than both of the others.
It is about the same height as the Czech bead. 

Information about beads

This is different types of seed beads,
and how the difference between Czech, Japanese and Delica beads
can effect the piece you are working on it