Each mug is an 11oz gloss white polymer material mug. It's plastic, lightweight, and durable. Also BPA free. 
 
Each mug is designed and printed in my home studio. There is NO vinyl, paint, or marker. With our printing process the design will not crack, peel, or fade. All of our ceramic and glass mugs are dishwasher and microwave safe, but recommended hand wash to ensure the longevity of the design as dishwasher heats may vary. 
Kids mugs are NOT microwave safe.