Eurographics Puzzles. Illustrated Periodic Table of Elements 300-Piece Puzzle (Small box).Box size: 8″ x 8″ x 2.37″. Finished Puzzle Size: 19.25″ x 26.5″.The complete illustrated periodic table of the elements, now in a fun and colorful puzzle format. Includes picture descriptions for better understanding!Strong high-quality puzzle pieces.Made from recycled board and printed with vegetable based ink. For Ages 9 and up. WARNING: CHOKING HAZARD – Small Parts. Not for children under 3yrs.