White resin rectangles with black indented printed letters. These are 4mm thick, so they will sit at the same height as stained glass and vibrant glass tiles. That can give a great effect. Lots of people love to add words or letters and numbers to their mosaics, so grab these while you can.
Same word both sides of the tile.
Sold by the bag. :) There's about 100 tiles in each bag... Random words per bag, plus country abbreviations. Limited stock.
Suggestion: Leave space to add these to your mosaic after grouting, or if that doesn't work, cover these with tape or Blutak/plasticene to protect from grout.
Don't be limited by your materials, play with your tesserae.