Bead Diameter:6mm, 7mm, 10mm Gemstone: Natural Obsidian/Strawberry Quartz Length:~6.5-8 inches Adjustable Color: Dark Wine Red/Black All dimensions are measured manually with deviation(ranged) at 3-5mm Obsidian/ Strawberry Quartz Chinese Style Gemstone Red Strings Bracelet Adjustable 6.5-8 Inches Woven Friendship Couple Bracelets