These construction kits have proved highly popular with both children and adults alike. These cool wooden models are made from pre-cut plywood sheets that come ready to assemble. Each model is built by slotting the individual pieces together, following the easy to use numbering system included in each kit. Can you build a bulldozer?? Pop all of the parts out of the 4 wooden boards, then start constructing your bulldozer challenge! These kits are packaged in self standing PET packaging to create great looking gifts.