hahaha, i failed to read the instructions right, I wound up putting it in my microwave for one minuit INSIDE MY TENGA!

warming stick: $5.50
tenga: $12
microwave: $100
blowing up your microwave with a sex toy:priceless

Bending the metal disc causes exothermic crystallisation in whats probably sodium acetate, these are basically reusable hand warmers and they should work perfectly fine, I dont know about a microwave but you can do like what you do with hand warmers and boil them. I think these are kind of useless though unless you live in Alaska and you dont want your dick to freeze.

This was a complete waste of time and money it pretty obvious why this line was discontinued the instructions on both this site and with the stick casing are incorrect. Step 3 is the first step because I bent the metal chip several times and it never heated up on it own and as for the microwave since the Japanese instruction say if you have a 500W microwave do put in on 20sec and 10sec if you have 600W, eventhough i have a 500W i put it in on 10 just to be safe and it got alittle hole and started to leak so I never even got to try it, to see if it was any good. I'll give it a 1/10 cause I never got to use it, bad instructions and its too damn fragile

Dude you suppose to bend the chip until it cracks dumbass, mine worked fine

I guess the instructions needs to be clearer. No need for name calling tho. I believe the key to microwaving is low power. You should probably contact toydemon about it.

MINE BROKE TOO... WTF THIS A COMPLETE WASTE OF MONEY... SHIT...17.99 DOWN THE DRAIN

I found the best way to re-liquidfy the warming chemical is to heat up a cup of water till boiling and then dip the warming stick into it until all particles in the stick turns back to liquid.

Jojo got it right. Wrap it in a dish towel and boil for 5 mins. Works every time. You also dont have to hear it crack. the metal disc inside press it until it pops (it will turn inside out).

ToyDemon people posted a pretty good way of recharging the stick on their forum. Microwave the stick in a cup of water, works like a charm

Needs better diretions!

It works, as in, it gets hot when you snap the metal, and it restores pretty easily if you read the instructions (which are also in English!)

Unfortunately, design came first on this one. The stick is long and flat, meaning it doesn't transfer heat very well at all to the cup. It should be a cylinder.

I wish the plug-in model was still available as it seems to have the right shape.

Not worth it. Stick got hot, but did not heat up the Tenga well. Probally be welcome if Tenga were kept in a cold room, but for me, waste of time and effort.