ONE A DAY Handmade Serotonin Molecule Chemistry Necklace Long Minimalist Chain Alloy Collares for Unisex Silver Length:3.7cm, Wide:2.7cm, Chain Length:45cm Material:Alloy, Chain Long alloy serotonin molecule chemistry pendant necklace, smooth texture and unique design, which is distinctive, reveal the person's personality and charm, Which is suitable for different occasions In general the delivery time is 7-15 days Lobster-claw-clasps, spring-ring clasp. Exquisite gift is suitable for different occassions.