Silicone Beads – 16 mm – Round Silicone beads, BPA‑free, direct from our wholesale for silicone beads. The largest selection of colors in BPA‑free material. Size 16 mm round. This size, together with our 12 mm silicone beads, is most commonly used for making pacifier chains. If jij want to make a teething ring, combine these 16 mm round beads with 20 mm silicone round beads.