Solid Cobalt Polished Density Cube 10mm - 8.9gElemental metallic 1 cm elemental cubes These highly polished cubes are great educational tools Story Each cube is highly polished by hand and laser engraved with its periodic info. Size: 10x10x10mm Weight: 8. 9g Sample Purity: 99. 96% Surface: Mirror Finish Each Cobalt cube is solid and of high purity of 99. 96%, highly polished by hand for many hours to reach a mirror finish, and laser engraved with its periodic info. This is an heirloom piece that

essential for the teacup's magnetic properties and water-softening abilities

and accommodates G2 refills

offering a refined tea experience that honors tradition

tea enthusiasts

Its subtly tapered silhouette fits perfectly in hand

Develop hand-eye coordination and concentration

it's sure to command attention and spark conversations about its origin and craftsmanship

unique to Longquan pottery

bio-compatible

It offers 10 different functions

Craftsmanship in action

Inspired by the birth of my son