Garrett 4.5” ACE Sniper Waterproof Search Coil with Coil CoverDescription: Garrett 4. 5'' ACE Sniper Metal Detector Search Coil ACE Series Detector Compatible with the ACE series Metal Detectors (ACE 150, 200, 250, 300, 350, and 400). For use with the Garrett ACE Series Metal Detectors. Use to find smaller, shallow targets in trashy or confined areas. This coil features a waterproof casing to easily locate coin, rings and other treasures among trash and in tight places that are too small for larger coils.