“The 15” NOX coil has fantastic depth and when using it in the water it glides along the sandy bottom with ease. There is hardly any drag or resistance in the water. I have found many rings already in shallow and deeper water. Most of the rings, and coins were over a scoop deep. This coil is lightweight and can get deep signals even on the small targets. Coiltek Coils are simply the very best.” – Leighton, USA