Kids can create lasting personalized pieces using this innovative combination of magic color permanent markers and special mugs. The process is quick and easy and requires no baking. Mugs are microwaveable and hand washable. Nontoxic markers dry in minutes. Kit includes two 3-3/4" mugs and six color markers. Ages 4-8. WARNING! CHOKING HAZARD - THIS PRODUCT CONTAINS SMALL PARTS AND IS NOT DESIGNED FOR CHILDREN UNDER 3 YEARS OLD.