EXCAVATE: Using the tools included in these kits from MindWare, chip, dig and brush away the plaster block until you discover all skeleton pieces. In this value-pack your child will excavate both a Triceratops and T-Rex. PREPARE: Once all pieces have been excavated rinse the pieces in water and follow the step by step instructions to assemble your dinosaur. ASSEMBLE: The bones snap together and can be repeatedly reassembled. DISPLAY: Once assembled, your skeleton will be an accurate model of a Triceratops measuring 12" long and a Tyrannosaurus Rex measuring 14.5" long! INCLUDES: (both sets each include) fossil block, hammer, flat chisel, point chisel, brush, sponge and instructions.