David Yurman small box chain necklace from the Chain Collection. Polished 18-karat yellow gold box chain and lobster clasp. Approx. 20"L; 2.7mm wide. Shop David Yurman Men's Pendants Care Instructions: Use the provided polishing cloth to gently wipe this item clean, then remove any remaining tarnish with mild diluted soap. Rinse with warm water, dry with a clean towel and store it in its jewelry pouch. Please note: Styles featuring meteorite should not be exposed to water.