To successfully find sharks teeth on the beach, you first must form a "search image" in your mind. A "search image" allows your brain to focus on certain details as you scan your environment, to improve your chances of finding what you are looking for. In the case of sharks teeth, your search image should be relatively dark, or black in color, and relatively triangular in shape. While you are scanning the shell beds on the beach, your brain will try to highlight the objects that meet that description, if you consciously focus on those details. The advantage of Shark Shades, and the reason that they are so effective, is that the special lenses make the black color stand out against the background of the shell beds. You will not have to spend any of your brains focus energy on "color", so you can focus only on "shape". This might sound like a small benefit, but actually, it is a major step forward in improving your chances to find sharks teeth on the beach. Shark Shades are sunglasses that are optimized to assist you in finding sharks teeth on the beach. Designed by an ophthalmologist, the proprietary lens tint helps make the sharks teeth stand out against the shells in the background. Hunting for sharks teeth is a great way to spend your time on the beach, and it can be a lot of fun. With Shark Shades, it will be easier to find sharks teeth, and that makes it a lot more fun. You will love them!