9-Piece Material Density Cube Set with Wooden Storage Box

This 9-piece density investigation kit includes 1-inch cubes of brass, iron, copper, aluminum, hardwood, softwood, nylon, PVC, and acrylic. The cubes come presented in a wooden storage box with foam cutouts for each block. Tolerances are within ±5% of stated dimensions. Includes a complete manual describing density, mass, and volume basics with calculation instructions. Some surface oxidation may occur on metal cubes due to humidity; simply scuff off to restore appearance. Required additional materials (not included): a weight device capable of tenths of grams and a metric ruler or caliper. Suitable for physics classroom density, specific heat, and specific gravity experiments.