The Dinosaurs Roar! 75 Piece Lenticular Puzzle from Mudpuppy is an exciting and innovative puzzle format that when put together has a wonderful picture that transforms and moves right before your eyes. See dinosaurs transform into their skeletons! Mudpuppy puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. 75pc puzzle: 17.75 x 11", 45 x 26 cm; Box: 9.25 x 7 x 2", 23 x 18 x 5 cm; Lenticular image on box cover; Puzzle greyboard contains 90% recycled paper. Packaging contains 70% recycled paper. Printed with nontoxic inks.; Ages 5+;.