Zak Designs SWRH-9535 Star Wars Coffee Mugs, Single, Kylo Ren Committed to safety - 100% BPA Free. It's a great gift, collectible, and keepsake, with an enduring design that will appeal to anyone. Other sculpted coffee mugs are also available from Zak Designs. Handwashing is recommended to preserve the finish. Do not microwave. Made of ceramic - stylish, holds heat.