Women of Science Ceramic Tile 4 Piece Set Caddy Included gift for graduation chemistry was not a strong chemistry was not a strong plotline for broadcast entertainment In certain extreme emergencies Earth friendly inks• Wood box holder included• Cork back to prevent scratches© Original design which is exclusive to Neurons Not Included Women Of Science Coaster Set Sandstone Tile with Cork Back 4 Piece Set Wood Box Caddy IncludedSet includes one each of:Marie CurieGrace HopperRosalind FranklinLise Meitner∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞∞Technical Specifications:• Each tile measures 4 x 4 x 1 4 inches• Image is permanently printed with non toxic