This kit includes 5 markers and a white mug for your child to create their own design. Leave to dry for 1 minute and the design is then permanent. Personalise this ceramic mug in your own style using the 6 coloured markers included. One wipe with a tissue and it's permanent! Great Gizmos specialise in quality science kits, that encourage children to explore and enjoy traditional skills whilst being creative and using their imaginations to have fun. All Great Gizmos sets are wonderfully educational and are also great collectors items for the science enthusiast. All Great Gizmos sets comply completely with relevant safety regulations and are CE tested and approved.