Beautifully crafted and polished, made from stainless steel with 6 small magnets embedded into the inside, this adjustable corona ring looks and feels great as you wear it.   You can even use it for estim by slipping a small piece of conductive silicone tube or conductive stip under or around it.

This item is not sold as a cock ring, but a small ring that can be placed aroung the head of the penis. 

    The chart below shows the minimum and maximum expansion diameter this ring can be adjusted to.

   S

Magnets are claimed to improve blood flow as many studies and reports have mentioned. Magnets are composed of metal alloys such as iron, nickel or cobalt and will attract many different types of metallic particles. Blood contains iron and when therapeutic magnets are placed on the skin the magnetic field penetrates through the skin and into the surrounding tissues and blood stream. The iron in the blood is attracted to the magnetic field, this causes movement within the blood stream and the increased activity causes the blood flow to improve.  We cannot prove or disproved of these claims, only mention it.