Practice opposites with these 2 piece puzzles! With twenty different puzzles to complete, there is a lot to talk about and the cute prehistoric characters are sure to make kids laugh: from a compsognathus lifting weights to a spinosaurus on skates, a woolly mammoth with curly hair and a diplodocus in boots. eraser! The sturdy and easily cleanable tiles are specially designed to withstand the hands of the little ones. As children put these prehistoric puzzles together, they will develop their language skills and hand-eye coordination skills in a fun way!