GlassLab 303 products are made using first-quality borosilicate glass ranging from 5mm thickness, with color rods, tubing, opals and dichro made in the USA. They source all of their raw materials from highly reputable names in the American glass industry, including Northstar Glass, Greasy Glass, Hand of Man Tubing, Trautman Art Glass, ABR Imagery and Molten Aura Labs.
The backside of GlassLab 303 pieces only receive their “Colorado Certified” logo after they have passed a thorough final quality inspection at their facility in Denver, Colorado.
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