Additional Details ------------------------------ Bullet point: The NEL Storm coil is designed to detect medium and small targets at a depth which is unattainable for other standard coils. Working with a slow swing will maximize its ability in finding not only large and medium targets but small targets which weigh less than 1 gram at 20 centimeters, 7.5 inches deep as well. Product description: The NEL Storm coil is designed to detect medium and small targets at a depth which is unattainable for other standard coils. Working with a slow swing will maximize its ability in finding not only large and medium targets but small targets which weigh less than 1 gram at 20 centimeters, 7.5 inches deep as well. The Storm coil is suited for finding coins, treasures, and artifacts in the field of military battles in any region world-wide. This coil is superior to a standard coil in depth by 30% with approximately 20% more ground coverage. The NEL Storm is a DoubleD search coil with dimensions of 13" long x 14" wide and weighs 23.6 Ounces, 670 Grams. The coil is waterproof and fully submersible, the body is filled with epoxy resin. Additionally a black protective coating, the same as used on marine boats, makes it possible to use the coil without coil cover. Recommended for professionals and amateurs! Includes coil cover, hardware and Velcro cable strap. 2 Year Warranty. For use with the Whites Prizm 3, 4, 5, 6, Coinmaster Metal Detector. Material: Resin