Allegria Designs Crocodile Pin The pins are sculptured from silver plated pewter that has been oxidised and buffed to obtain a contemporary, antique look. They are so adorable, we know you will love them. The Estuarine crocodile, while it can live in salt water, is able to go quite far up river into fresh water. It is one of the most dangerous of all the crocodile family, being the biggest and heaviest. It grows to between 4 and 7 metres long. The Johnsons crocodile lives mostly in freshwater, but can also live in salt water. It grows up to 3 metres long. It is considered to be dangerous even though it is not known for attacking humans. All pins come in a gift box so make great presents for friends â€“ especially easy to mail overseas. Weight: 18 g in gift box.