9 PCS Element Cube Set 10mm Density Cubes Up to 99.99% Purity Periodic Table Collection Cobalt Yttrium Tungsten Niobium Zirconium Lead Antimony Chromium

Description

Some of the metals and elements are not common yet nor rare in daily life, and now it is easy to get them collected, with 99.5%-99.99% high purity. With 10mm (0.39"), the cubes are hand made with +/-0.05mm tolerance, very accurate cubes with NO sharp edges. Each of them has been protected in vacuum sealed bag to pevent from oxidation. There are 9 models included: Cr Co Bi Mo Nb Sb W Y Zr