Basically there is a metal disc suspended in fluid inside of the 5”x1” flexible case. When you push the metal disc it causes a chemical reaction that causes the fluid to become semi-solid and get warm. I also have one of the Heart Massagers from Pipedreams; and the Hole Warmer doesn’t get as warm, or stay as warm, as it does.
From the time you click that disc the reaction happens very quickly with it noticeably getting warm in less than a minute. Although it takes about 3 minutes reach full warmth. After 10 minutes it starts to pass the plateau of maximum warmth and slowly declines back to room temperature. I believe it is because of the smaller size (compared to the massage hearts) that it doesn’t hold the temperature as long.
Anyway, for couple’s use, I like to slide this into the masturbator I plan on using with my husband about 5-10 minutes before use. This is not just compatible with Tenga products, but any type of masturbator. This is perfect timing for a little bit of foreplay or a short massage. For solo use, it’s just enough time to start an erotic read or movie.
It’s not so much that this is going to create a “hot hole”, but that it warms it to just above body temperature. Especially for realistic feeling toys, this just adds to the realism.
When playtime is over, wipe it down and throw it in a pan of boiling water for 10 minutes. It will return to its original state and be ready to be used for next time.
In the end my over-all opinion is… meh… a nice accessory, but not a staple. It requires some thought prior to use- remembering to insert it before you need it rather than being grab and go. And it requires that you remember to boil it before it will be needed again, otherwise it’s useless. It does take away the mess and pain-in-the-ass aspect of just using warm water to achieve the same result, but has its drawbacks too. I don’t regret purchasing this, although it doesn’t get used to much in our normal rotation. I think those who will appreciate this most are those who really need to have their toys warmed prior to use, and those sick of dealing with water to do the job.