Lucy Williams Snake Chain Necklace Set | 18k Gold Vermeil. Upgrade Your Layers with this Pared Back Set. Teamed Together, the Lucy Williams Flat Curb Chain and Square Snake Chain Necklace Make a Unique Impact. Save More When Buying Them Together. Worth $509 | Now $441. Metal: Flat Curb Chain and Square Snake Chain is 18K Gold Plated Vermeil on Sterling Silver Flat Curb Dimensions: 450mm; Chain Thickness 3. 8mm Includes One Fixed Clasp with no Extensions Square Snake Chain Dimensions: Total Length 450mm with Extensions from 410mm to 450mm Chain Width: 1. 5mm Weight: 21g Product Code: Set-N33