A variety of materials in the form of rectangular blocks, intended to familiarise the student with the appearance, 'feel', texture, hardness and density of a range of common substances.Kit contains blocks of materials in the following sizes:Softwood, Hardwood, Paraffin Wax, Aluminium, Iron, Foamed Polystyrene: 50mm x 40mm x 30mmPerspex, Glass, Slate, Aluminium, Softwood, Marble: 20mm x 20mm x 100mm Lead: 50mm x 50mm x 20mmAluminium: 50mm x 50mm x 80mmHardwood: 50mm x 50mm x 200mmBrass: 20mm x 20mm x 50mmIron: 40mm x 40mm x 20mm.