Features: 1. Open back, good for string passing through, easy to take in and take out. 2. Has natural appearance, with faint smell of sea water, full of seaside breath. 3. Naturally strong, hard to break and crack, long-lasting. 4. Clean, polished, creamy-colored surface, simple&elegant. Natural Cut Cowrie Shell Beads 1. Top style for summer, shell beads retain their natural colors and shapes that give you a beach feeling. It can be fashionable statement in necklaces, bracelets and earring sets. 2. Used as decoration for beach/sea theme parties, fish tank, glass micro landscape, greeting cards, wedding, birthday parties, beach parties, beach-themed baby showers etc., create comfortable environment with thick natural breath. 3. Perfect as an alternative to beads for adorning your hair locks and braids. Perfect and easy to use for crafts and jewelry. They go very well with hemp cord and leather. Widely Usage Meet DIY Need Mighty Decoration For jewelry making Are they real cowries shells? Yes,they are natural cowrie shell. Are they all cut in back? Yes, they are. All of them are cut in back and every bead has a hole, the rope can be easily put in and out, you can thread them to a rope and make beautiful products. Are these shells unglazed? No.They are natural color. Do they have holes for sewing? You can put a string thru it, there is a big natural looking hole in the back of them.