Natural Prehnite rough stick point beads briolette nuggets tusk bead, freeform chips 15 inch strand You have the option of selection a 7.5 inch strand or a 15 inch strand. The beads vary in size but range between 15mm to 30mm (varies) These are all natural and vary. Photos are representing items from lots. Colors can vary from lot to lot. Sizes can minimal vary too. Normally, It will took about 10-15 days delivery for United states,and 15-20 days for any other countries. For any reason, if you are not satisfied with our product, you may return your order within 14 days from the date of shipment received.