Okamoto is a well-known condom brand in Japan, in fact, in addition to latex rubber products, Okamoto also produces a variety of daily products, and warm paste is one of them.
 
"快温くん" is a registered trademark of Okamoto disposable heating products, born in 1997, with a cute elephant as the symbol, mainly divided into three products: regular version, foot patch version and temperature two-stage post. It is filled with Okamoto's original Purge purifier and high-quality iron powder, which has the characteristics of uniform heat generation, which can last for 12 hours, and uses a re-peelable adhesive to provide strong adhesion without damaging clothing. The foot patch includes black and white, with an average heating temperature of 38 °C and can last for 5 hours, although the temperature is relatively comfortable and not easy to risk burns, but the duration is slightly shorter, and it is not suitable for long-term outdoor use.
 
Kuaiwenjun plus temperature two-stage (快温くんプラスTemperature 2段階) Warm paste is a new feature product launched by Okamoto, there is a sticker in the middle of the warm sticker, when the sticker is not torn off, it can continue to heat up to 53 °C for 12 hours, if you tear off the sticker, the average temperature can reach 56 °C, the duration is shortened to 8 hours, users can adjust it according to the temperature they feel comfortable and the heating time they want, it is still an exclusive product of Okamoto, and each piece is only 10 yen more expensive than Kuainjun, which is very cost-effective.
 
Kuaiwenjun's regular warm stickers have a Chinese version, called "Kuaiwenjun", which is the same as the Japanese version of Kuaiwenjun, both made in Japan, and sold both online and offline in China. The fast temperature patch is about 3 yuan per piece, and other versions are not sold in China, the foot patch is about 6 yuan per pair, and the fast temperature Jun plus temperature is about 3 yuan per piece in the second stage.