This 3D puzzle of a CAT 24H Grader is a great challenge for anyone over the age of 15.  (Not suitable for small children as there are many small parts). Please note this is a model for display purposes when complete, and not a toy.  All parts are cut from MDF wood. Please note that although most parts fit together tightly, a small amount of PVA wood glue may be required (NB: Glue is not included in the assembly kit)