Very Attractive Thin Silver Dot Dash Chain for Women and Men 20 inches long This 3+1 Dot Dash Ball Chain is made with 1.5 mm Round Beads Nickel Free High Polished Finish with Lobster Clasp Made in Italy Genuine 925 Sterling Silver This Light Ball Chain is Silver. Made with alternating 3 Short + 1 Long Bead Pattern. Just under 1/16 inch (1.5 mm) Thin Commonly called Dot-Dash chain High Polished Nickel Free and made In Italy. Available in bracelets anklets and chain lengths from 16 to 30 inches. size 7 inch