This 7″ Concentric KR18C search coil is for use with the Makro Kruzer, Multi Kruzer and Anfibio metal detectors. This is an optional search coil for the Kruzer and Anfibio series. This coil is not compatible with Makro Gold Kruzer. This is a smaller sized coil that will detect individual targets such as coins, relics and jewelry with great accuracy. Include coil cover and hardware.