These handcrafted terrariums are made by skilled artisian blowers from 100% Recycled Glass. Their unique and abstract shapes depend on the shape of a natural plaster of wood on which glass is poured by hand. Because of variances in the wood, these terrariums take on unique shapes and each terrarium is one-of-a kind. They can also be used as a vase or aquarium. We can only show you a picture of what some have looked like and you get a bit of a surprise, and delight, when yours arrives. Ecological glass has slight green tint and may contain natural air bubbles. Handmade products may show minimal differences in dimensions.