This Crocodile Reptile Premium pin is a perfect gift for herpetologists and reptile lovers. Each pin is double tacked (military style) to avoid spinning. We only use strong neodymium magnets for a powerful grip. Proudly crafted by American Artists. After casting, each piece is hand finished and polished for a beautiful antique look. Satisfaction Guarantee! Crocodiles have a similar appearance to alligators but are part of a different evolutionary family. Crocodiles have a V-shaped head where the alligator has a U-shaped head. Crocodiles also tolerate saltwater by using a salt gland. The largest breed the saltwater crocodile can grow to sizes of over 23 feet long ( 7 meters).