SizeThe bracelet with elastic cord; These 10mm natural stones are strung on a very sturdy durable 7.8" long stretch . Elastic Band made to fit MOST people$MaterialHematite+Black Obsidian+Tigers EyeNatural material for long-lasting beautyGive unique temperament.$Hematite is well-known for its protective and grounding power.It will keep you emotionally and spiritually safe$Black Obsidian: also know as the Black Volcanic Stone, or Black Onyx, have Strong Curative Properties.It is also famous for its protective power that protects anyone from negative influence while cleansing their body of negative energy.$It is a perfect holiday gifts for Christmas day, Anniversary Day, Valentines Day, Mother's day, Father's Day and Birthday to your girlfriend