Brush up on the periodic table over a cup of coffee.There's antimony, arsenic, aluminum, selenium, and hydrogen and oxygen and nitrogen and rhenium and nickel, neodymium, neptunium, germanium, and iron... Can't remember the rest? Well no need to worry with your genius 250ml ceramic mug to help - it is SO clever it's even dishwasher safe! The perfect vessel from which to sip your preferred blend of H2O and C8-H10-N4-O2 (thatd be, coffee). And to showcase your braniac abilities.