Color:10 colors MATERIAL: Black lava stone, finished with heat treating and surface polishing.They are natural stone beads, size and color may have slight difference MATERIAL: Black lava stone, finished with heat treating and surface polishing.They are natural stone beads, size and color may have slight difference PRODUCT WARRANTY AND CUSTOMER SERVICE: We provide 48-day money-back and 24-month warranty. So feel free to contact us if you have any question Volcanic rocks (commonly known as pumice or porous basalt) is a functional environmentally friendly material, is the volcanic eruption after the volcanic glass, minerals and bubbles formed very precious porous stone, volcanic rocks containing sodium, magnesium, aluminum, silicon , Titanium, manganese, iron, nickel, cobalt and molybdenum and other dozens of minerals and trace elements, no radiation and far-infrared magnetic wave, after the ruthless volcanic eruption, after a lapse of thousands of years, humans are increasingly found it Of the valuable place. Has been extended to its application areas to the construction, water, grinding, filter, barbecue charcoal, landscaping, soilless cultivation, ornamental and other fields, in all walks of life play an irreplaceable role. The role of volcanic rocks:running water Stable water quality Adsorption Promote metabolism.
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