Toys & Joys plans are beautifully detailed and have been designed to be used as desk objects and shelf models. Plans include a material list, detailed drawings, complete assembly instructions and a photo. Wheels, axle pins and some miscellaneous turnings are available for this plan from Stockade. The Bulldozer uses 4 - #WT200 - Tread Wheels, 6 - #AP600 - Axle Pins, 2 - #WH109 - Contour Wheels, 6 - #TP175 - Tiny Pegs, 24 - #WH079 - Contour Wheels, 1 - #JY14 - 1/4" Screwhole Buttons, 10 - #DM181 Dowel, 1 - #DM141 Dowel, 1 - #DM561 Dowel and 1 - #DM121 Dowel. Please note that these parts are not included with this plan and must be ordered separately.