Now you can nano-size your very own set of dinosaurs. With these micro-sized building blocks, 3D models take shape right beneath your fingertips! You will be amazed as these dinosaurs are assembled to the tiniest detail. With over 290 assorted pieces, create a detailed replica of a Triceratops and a Brachiosaurus Skeleton that fit perfectly in the palm of your hand. The Triceratops finished size is 2" h x 1.25" w x 4.5" d and the Brachiosaurus Skeleton finished size is 5" h x 1.25" w x 8" d. Includes detailed color instructions. Not designed for children under age 8. Level of Difficulty: 4 (on a scale of 1-5 with 5 being the most difficult). The smaller the block the better the detail.