Women of Science Ceramic Tile 4 Piece Set Caddy Included gift for graduation As immersed as we are As immersed as we are in our technology centered world Here in the 21st Century 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