Our 5.5 x 12mm rectangle lobster clasp in sterling silver .925 is the perfect clasp for your chunky chains. CLASP MEASUREMENT: OD: 5.16 x 11.80mm Body Thickness: 2.70mm CLAW OPENING: ID: 3.53 x 2.30mm Max Opening Size: 1.06mm Use with up to 18ga, 1.02mm CLOSED END LOOP: ID: 1.35 x 2.58mm Use with up to 20ga, 0.81mm View Abbreviation Guide Tips, Tricks and How To's! Follow Stones and Findings on YouTube

