Silver Lined Lt Siam Ruby

TOHO beads are a very regular in size, shape and quality. 
With larger holes than other size 11 seed beads, they allow many thread passes through each bead.
The larger hole also creates lighter beads which give you more beads by weight.
TOHO 11/0 round seed beads are 2.2mm.  There are approx 1,000 beads per 10 grams.