Butterfly Rays of Light Travel Mug, Stainless Lined Coffee Tumbler 16-Ounce, Lynne Pittard, Gift for Lovers of Butterflies - Tree-Free Greetings 25503 Premium quality 16-ounce travel tumbler coffee mug for hot or cold beverages Stainless steel inner layer, comfortably curved acrylic outer layer; BPA free and Proposition 65 compliant Rocket seal prevents condensation from forming between acrylic outer and stainless inner; hand wash only, not dishwasher safe Beautiful, colorful butterfly themed art makes a great unique present for the special men and women in your life. Great for coffee lovers. This cute travel coffee mug featuring butterflies is the perfect Christmas, birthday, or anytime gift for the nature and butterfly lover in your life and guaranteed to bring a smile to their face.