Ninjacrafters Three (3) 1/4" Sterling Silver Ring Blanks 18 Gauge, Medium, Blanks for Hand Stamping Finished blanks - ready to stamp right out of the bag! Handcut by NinjaCrafters in California. Three solid .925 sterling silver blanks for metal hand stamping, made from eco-friendly recycled silver. tumbled, deburred, polished to a shine, with gently rounded ends Made from 18 gauge sterling silver; each ring is 1/4" wide and will make an adjustable ring to fit sizes 6-8 Also works well for enameling, engraving, riveting, etching and more!