A rolo chain and adjustable design give this 14k gold over sterling silver necklace versatile styling. Click on this JEWELRY & WATCHES GUIDE to learn about fit, styles, materials and more! - https://www.kohls.com/feature/jewelry-guide.jsp. CHAIN DETAILS. Type: rolo, Length: 15 in. adjusts to 22, Width: 1.1 mm, Weight: 3.5 grams, Clasp: lobster-claw, Metal: 14k gold over sterling silver. Size: 22". Color: Yellow. Gender: female. Age Group: adult.