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<http://schema.org/description>
"Size of a shungite cube: 80 mm (3.15 inches) Weight: 1180 grams (2.6 pounds) Radius of action: 6.5 meter (21 foot) Shungite cube is a very convenient home decor piece. It can be placed wherever you want: your bed table, computer table, near your TV etc. Please note that pictures are used for illustrative purposes only. If you have any questions regarding our products, do not hesitate to contact us, we will do our best to assist you."
<https://shungitewholesale.com/product/shungite-cube-polished-80-mm-3-1-in/>