Check the listing for details. Yellow Door Dinosaur Bones Match & Measuring Set. Condition: New. Listed at 49.95 USD. 2 years & up. These dinosaur bones are guaranteed to cause a lot of excitement. Durable and weatherproof, you can bury them in the sand, soil or water. Dinosaurs are a source of fascination for many children. They will find much to entertain and educate them with our Dinosaur bones. Appeal to children's instincts to explore, investigate, sort, compare and measure. Set includes 16 bones in eight different lengths. Bones vary in length from 2.5" to 8".