There is an anti rotation feature built into the length of the stem externally which increases their strength and also stops sideways movement so no twisting or wobble

Precision-machined aluminum construction withstands high-pressure prospecting conditions

Genuine XP OEM part - exact replacement for original waterproof case

known to divers as the CZ21 QuickSilver

Alluvial Creek and River Beds

Minelab 11" Round Monoloop Commander Coil for GPX, GP and SD Detectors gpx series There is an anti rotationAdd depth and sensitivity to your gold detector with the genuine Minelab 11 inch round monoloop Commander coil. This is a versatile all round mono coil that balances solid ground coverage with strong target response, making it a dependable everyday choice for gold prospecting. If you run a GPX, GP or SD series Minelab, this is a coil you will reach for again and again. A monoloop (mono) coil transmits and receives on a single winding, which gives it