The 15 x 12-inch Monoloop coil is still quite sensitive to small gold nuggets, has greater depth on larger gold and covers more ground than the 8-inch or 11-inch Monoloop coils Part No. 3011-007415 x 12-inch Monoloop Commander CoilSKU: 3011-0074$385.00PriceQuantity*Add to CartBuy Now