Inset Boards: Vehicles This puzzle is made out of MDF wood ,this board consistes of 10 vehicles picture ,each picture has a knob on it so that a child can remove the picture and place it in the same position easily. Brand - KidKen. KidKen is a leading manufacturer of Montessori Materials, Wooden toys and educational toys. We are a 15year old company and have been supplying our products to more than 5000 schools across India and export our products to many other countries. We use eco friendly EN71 certified paints and ensure all our products are safe for child.