Lube during Masturbation

Other helpful discussions on Vibrating penis ring:

metal rings - dangerous?
i recently bought an Omega stainless steel cock ring for my partner. i bought the largest size , 2 1/8 in diameter, which i think should fit him well

This as good as a regular cock ring that is really tight?
How well does this product work and does it work as good as a regular cock ring that is really tight?

Does the vibrating part go up or down? Or does it matter?
Interested in trying one of these vibrating penis rings but don't really know if the vibrating part goes above or below the penis?

Non-vibrating cock rings
Are there any cock rings that don't vibrate that still have clitoral stimulator that are a good buy? My husband and I used a cock ring for the first..

Which gets better results?
which seems to get better results penis pumps, rings, or something else (please explain)