CORS Scout 12.5"x8.5" DD Search Coil for Fisher F2 & F4 Metal Detector w/Cover Compatible with Fisher F2 and F4 Metal Detectors. Included Accessories Nut and Bolt with two Rubber Rings Velcro Strap Coil Skidplate already attached to coil Protective connector cap. Connector type: Screw on Outer Coil shell manufactured from high impact resistant plastic UV Protected The Search Coil is completely Waterproof Coil cover is included (you can use it without a coil cover as well) Coil Size: 12.5" x 8.5" (31.7 x 22 cm) Weight: 17.2oz (490g) (without coil cover) Waterproof Double D Configuration Balanced Parameters Protective connector Cap included to prevent dirt and dust from getting in when not in use Connector has gold or silver plated contacts depending on the model High-strength cable with a larger cross-section - Made in Germany The Coil is filled with a high quality epoxy resin Extremely robust coil mounting bracket Cable Strain relief offers complete waterproofing