We have Toho and Miyuki size 11 seed beads. They both have a diameter of 2.2mm and are sold in a flip top box containing approximately 11 grams depending on the finish unless otherwise stated. There are about 1250 beads in an 11 gram box.
We also have Takumi beads from Toho. Takumi beads have holes that are 15% bigger than traditional Toho seed beads. Useful for designs with lots of passes of stringing material through the beads or use with thicker stringing material.
Tested with 0.15mm Wildfire and a size 11 needle these beads take 10 passes of thread. Change to a smaller needle and you may get a few more!
We have size 11 seed beads made by Miyuki then coated in the Czech Republic. There are Miyuki drops, firepolished beads, Spikes, Gumdrops and Farfalle butterfly beads with the same coating.
The Miyuki size 11 bead mixes are made from Miyuki beads (no Czech coatings).