Distinctive Contours: For a more elegant style, this Calvin Klein necklace features sculptural, warped rings in a two-toned polished finish. Great Fit: Inner circumference 18” w/ 2” extender Style and Ease: Featuring a lobster claw clasp for a strong and secure closure. For Countless Occasions: Working, shopping, travel, vacation, holidays, etc. How to Care: To protect the plating, remove your jewelry prior to hand washing, swimming, exercising, cleaning, and before applying any kind personal body products. Maintain your jewelry’s high shine by avoiding contact with soap, perfume, lotion, makeup, hair & cleaning products.