Heatons build and play bulldozer the heatons build and play bulldozer is a fun educational toy that introduces your child to construction and mechanics at an early age it features a toy bulldozer in a variety of pieces plus tools and nuts and bolts with which to build and take the bulldozer apart build a bulldozer set 23 pieces bulldozer can be dismantled and rebuilt tools nuts and bolts not suitable for children under the age of 3 years