It's never been this easy to build a dinosaur. Velcro blocks are safe, forgiving, and simple for little kids to use. All they have to do is connect the Velcro fastening dots. No snaps, slots, glues, or tricky bits. Assemble, adjust, reposition, take apart, and do it all over again. T-Rex pieces are EVA foam, perfect for little hands. 31-piece set includes 19 blocks and 12 plastic parts. Finished dinosaur is 11 ½" high. Ages 3 and up.