Spider Web Magnifying Glass Pendant Necklace in Silver-Tone and Gold-Tone, 30 Inches 30 inch two tone hematite-tone gold-tone open work spider web magnifying glass pendant necklace. Pendant measures 1  inches in diameter (plus an additional 3/16 inch on the clasp side) Magnifying surface measures 1 3/8 inch diameter. Spider web cover closes with a magnetic clasp. Necklace comes with a 3 inch attached extender and closes with a lobster clasp.