Nokta Search Coil Joint Connection for Jeohunter 3D Metal Detector Model_APEX Optimized for Larger Material Loads: Frequency_Very Low Frequency (FLV) Optimized for Larger Material Loads: The 20 inch diameter makes this pan ideal for processing larger amounts of material at once 570 g Target Separation Excellent Very Good Good Maneuverability Excellent Very Good Moderate Iron Heavy Sites Excellent Very Good Good Ground Coverage Moderate Excellent Maximum Open Fields Very Good Excellent Excellent Beach Hunting Very Good Excellent Excellent Coin Hunting Excellent Excellent Very Good Relic Hunting Excellent Excellent Excellent Swing Weight Lightest Balanced Heaviest Best For Separation Provides a robust and reliable connection for the search coil ensuring reliable performance during metal detecting sessions