These shells are very beautiful. They are lacquered so should not go in aquarium. Perfect for mirrors, wreaths, wind chimes, picture frames, shell flowers, shell layer sculpture figures! This item is limited only by your imagination. They are natural and have slight differences in stripes and spots from one to the next ! I have tried to show that with the picture. Price is per each. We also have a wonderful assortment of thin sliced agates available that could be combined with these. WOW how beautiful that could be. Buy as many or as few as you want. Stop in and visit our e-store for many more great choices. Will gladly give shipping discounts and or ship internationally.---------If you add us to your favorites list you will be updated by e-bay when we list new items. Don't forget to sign up for our monthly news letter !