These rhinestones are made of leaded crystal which has individually cut and polished facets. Flat backs have eight facets. This is a great way to save a little money and only slightly compromise quality. You are purchasing Preciosa Machine Cut Czech Flatback Rhinestones - Size 20 ss - Crystal AB
; "Preciosa Machine Cut Czech Flatback Rhinestones - Size 20 ss - Crystal AB")
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