silicone beads – Glow in the Dark These silicone beads are fully safe tested according to EN-71 guidelines. The beads are BPA free, , PVC-free, for CE certified end product. These silicone beads glow in the dark and are available in 12, 16 and 20 mm round. Note, the effect is better when exposed to sunlight or "oud-fashioned" lamps. LED lighting gives a slightly less bright effect and requires more exposure to the lamps. A super cool combination with Glow in the Dark pacifiers.