Additional Details ------------------------------ Product description: Detech 15" Ultimate Search Coil for Garrett Ace Series Metal Detectors This Detech 15" Ultimate Search Coil is for use with the Garrett Ace Series metal detector. By upgrading to the larger coil, you will achieve the best depth and most accurate pinpointing. Compared to traditional DD coils, the patented Ultimate coil technology provides you with more stable operation, better ground balancing, and the most accurate target identification. Search coil is waterproof and coil cover is included.Compatibility Garrett Ace 200 Garrett Ace 300 Garrett Ace 400 Garrett Ace 150 Garrett Ace 250 Garrett Ace 350 Features Compared to a standard Double D search coil, the patented Ultimate coil design has the following advantages: Better ground balance More stable operation Deeper detection depth Better pinpointing More accurate target identification Specifications Waterproof Ultimate Design Coil Cover included Size: 15" Coil Weight: 1 lb. 10 oz. Material: Metal