Resin letter beads, sold by 25gms- random letters, black and white, round about 7mm diameter. $4.10 per bag. The white letter is indented and painted. I would suggest covering the top with blue tac before grouting, so you don't have to scrape the grout out of each letter.
Great for those who love to include the alphabet in their mosaics, whether it is their initials, or random letters, or words or quotes...... Add to your letter collection NOW.