Exotic Butterflies 11 OZ. Ceramic Coffee Mug

Did you know that butterflies wings are transparent? The wing is layers of a protein called chitin. The chitin is thin enough that you can see right through the wings. As a butterfly ages the scales that cover the chitin (these scales reflect light creating colorful wings) fall off and where the chitin is exposed the wing is transparent. This colorful mug is 11 ounces and is microwaveable and dishwasher safe.