I have been using this heating pad for awhile now and I have to say that if you can use a microwave, than this is the best heating pad you can get. The best thing about this purchase is that when you buy it once, you get two of them. This heating pad has a mixture of rice and flax seed(the 2 best microwaveable products that provide moist heat) that stay warm for a great amount of time. Here is a link with the heating pad that I am talking about http://www.meditests.com/footwarherar.html I know that they are foot warmers, but I use it like the front pouch part of a jock strap. I microwave one foot warmer, place my penis into the foot part, use the rest to lay on the top of my penis, and use the rest to warm-up my pelvic area. It is a pretty easy method to get a great warm-up for your Penis Enlargement sessions. Hope this helps you Penis Enlargementers!