The Magnetic Power Jag Ring or Power Jag Double Ring or Magnetic Power Ring (there seems to be some disagreement on the name written on the box) is a cockring like many others. It stretches to fit most penises and toys, it uses a compact and quiet vibrating bullet to provide extra sensation, and it is simple to use. What makes this ring stand out however, it the fact it uses magnets embedded in the TPR ring body to "increase stamina". With the proliferation of magnetic bracelets and jewelry in popular culture these days, it isn't too surprising to see an effect on the adult toy market as well. While the effects of magnets on the body are questionable, it's nice to see a manufacturer trying something different. The magnets do not affect the use of the ring at all, the TPR is molded around them and they cannot be removed. Aside from two small bumps in the ring material, this cockring looks and performs like any other.

The body of the Power Ring is made of the very popular and relatively safe TPR. TPR is a plastic based product that is surprisingly non-porous given how flexible it is. The flexibility and stretchiness of TPR is what makes it a fine material for toys in general and items like cockrings specifically. The Power Ring is stretchy almost to the point of being jelly yet it retains an incredible degree of strength. This is a key feature since you would otherwise be attempting to force a rigid object down over the very sensitive flesh of the penis (or very expensive flesh of a silicone dildo). By being made of such flexible material the Power Ring can be easily put into place and removed.

A note about the TPR material is that it tends to be somewhat tacky. This can be problematic during use since it has a troublesome tendency to grab pubic hairs and hold on for dear life. The tacky texture is a little uncomfortable for some people though that can be fixed with a small amount of lube between the ring and the skin. That same tackiness can also lead to an accumulation of lint or dust on the toy so be sure to keep it in a bag or some sort of storage device.

The single vibrating bullet is powerful for its size though the flexibility of the TPR does not allow much of the vibrating power to transfer down into the wearer. The sensation is there but it isn't as powerful as holding a vibrating bullet directly against the body. The bullet itself is made of smooth plastic and is very hard. The hard plastic transfers those vibrations directly to whatever it touches.

As far as size goes, the unstretched diameter is 1.75 inches. That stretches all the way out to a little less than 3 inches in diameter allowing you to put it on the largest of cocks or perhaps dildos. If you are a fan of cats in general or panthers in particular, this cockring's bullet holder is shaped like the head of a jungle cat. Unlike the rest of the ring which is very soft and pliable, the cat head portion is very firm. Since this is the part of the ring most likely to come into contact with the partner's body I found this to be a good design feature since the extra firmness will transmit the vibrations effectively wherever the head touches.

The vibrating bullet on the Power Ring is a standard hard plastic cylinder with an activation button on one end. By tapping the button you can cycle through the three levels of vibration or turn the bullet off. There is a small o-ring in the battery housing which makes the bullet technically waterproof but you should always exercise caution with lower quality bullets like this one. It would be very easy to ruin the bullet if the cap were not fully engaged.

The most interesting and unusual feature of this particular ring is the fact it includes magnets inside the ring body. Magnets have been in use for some time as a means of alternative treatments for many conditions and they allegedly provide good results for many people. The idea as I understand it is this. Everything on earth has its own frequency and when items resonate with the same frequency, the waves are amplified. The magnets in energy bracelets or cockrings supposedly strengthen the body's energy field and help to tune the wearer's body frequency to a level that increases energy, strength, focus and endurance. That is quite a claim for a simple cockring to make but nothing ventured nothing gained. At the very least the magnets add some weight to the overall item that helps it transfer the vibrations from the bullet to the wearer and his or her partner.