This Wine Glass is better than Acrylic because they are polycarbonate. They will not to break. Each Wine Glass will have a different color on the bottom - So You Know which is Your Glass. No Wine Charms Needed. They are great for the pool area or on your boat. They are available in the Multi-Color or you can pick your colors. Check out the Acrylic Iceless Wine Cooler. We recommend handwashing all items.