The US Divers Aqua Lung Diving Knife is a high-quality dive tool designed for underwater use. With a 4.5" blade and a 9" overall length, this knife is compact and easy to handle. The black and lime green color scheme adds visibility and style, making it a practical choice for scuba diving and snorkeling enthusiasts. As part of the Aqua Lung brand, you can trust in the durability and reliability of this diving knife for all your underwater adventures.