It´s a puzzle and a science lesson all in one! Help your little learners develop an early love of science with this gigantic 13-piece puzzle. The big, soft foam pieces are perfect for small hands and safe for home or classroom floors. The big, bright T-Rex is on one side, with his skeleton on the other side, so kids can keep finding new ways to play and learn. Measures 4´L x 2´H when complete.