Material:316L Stainless Steel. ;SizeChain Width:7.8mm.Bracelet length:8inch;Necklace length:18 inch.Weight:3.2oz. Feature:Nothing.But only a Big heart for you! DESIGN CONCEPT: necklace, fashionable and comfortable to wear, could be sent as a Christmas Gift, Valentine's Day Gift, Mother's Day Gift, Birthday Gift, Wedding Anniversary Gift. Fit every men boy women girl,packaged in a velvet drawstring bag for easy gift-giving. After-sales service : Contact us if you have any problem. Replying within 24hr,Within 90 days for the quality problem , we provide money back.