Additional Details ------------------------------ Product description: This is the serious prospector's coil of choice for maximum depth and coverage whether searching for treasure or gold. It is known in the treasure hunting regions worldwide as the Cache coil with many users finding ancient artifacts at great depths, some as deep as 7 feet when used with a GPX detector. In open terrain on goldfields, it's outstanding for patch finding and deep nugget hunting. The Double-D (DD) configuration can utilize the Iron Discrimination function on GPX detectors. Compatible with all Minelab SD/GP and GPX detectors. Size: 540mm Weight: 1100g / 38.8oz Configuration: Monoloop (MONO) and Double-D (DD) coil Material: Metal