Modern-twist Vinotagz Wine Glass Markers, Petals, Set of 6 Six colored, flexible stemware markers made from FDA-approved, food-grade silicone Write on the Vinotagz with ballpoint pen or dry-erase markers for extra personalization and identification Safe for people and the planet: free of BPA, PVC, lead, latex, and phthalates Clean with a quick wipe down or rinse to use again and again Each marker fits standard stemware, measuring 1-3/4 inches by 1-3/4 inches per side and approximately 1 millimeter thick.