7-Metal Density Cubes Set with Hooks, 20mm

This set of seven density cubes with hooks includes brass, lead, zinc, copper, aluminum, iron, and tin, each measuring 20mm (0.8 inches) on a side. Every cube is stamped with its element identification for easy recognition, and the set is supplied in a plastic snap-top case for convenient storage. The cubes are designed for density investigation, specific gravity exploration, and specific heat experiments across all grade levels. Due to the nature of raw metals, some oxidation or corrosion may occur during storage; any surface buildup can be removed by lightly scuffing with sandpaper.