This is a sample of what we can make for you. This was requested by a customer for her hair. OPTION-- the blue beads can change to any color beads you want. cord can be white, brown or black. Measurements. shells measures Approximately 16.0 mm to 21.0 mm. Cord measures Up to 24" Long. Please let me know if you like it shorter! Beautiful handmade Sea shell necklace or hair tie. Guaranteed fast shipping!