At the moment we carry the tagua nut round beads in 6 different sizes: rounds 5mm (pack of 12 units), rounds 7mm (pack of 12 units), rounds 10mm, rounds 12mm, rounds 16mm and rounds 20mm. Vegetable ivory rounds in 5mm and 7mm are machine made and therefore very consistent in size while the other 4 sizes are handmade and therefore have some variation in size.