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.