The TENGA Hole Warmer is a super smart accessory for all Tenga products. Many are very impressed with how realistic the experience becomes when you use the Hole Warmer to warm up the different masturbator products before use.
When you use the Hole Warmer for the first time, you simply press on the metal plate that lays in the clear liquid. This makes the contents in the Hole Warmer crystallise and warm up. Then plug the Hole warmer in a masturbators opening and let it sit until the product reaches the desired temperature. The heats lasts for up to 30 minutes.
When you want to use the Hole Warmer again, it needs to be warmed up in boiling water for 3-4 minutes.
Thorough user guide (in English) included.