IRIS OHYAMA is a Japanese company that mainly manufactures plastic products for household use, and has a high reputation in the home goods market as a "storage specialist". Although the warm paste product is an outlier in IRIS's plastic products, it has been sold in Japan as early as 2006, and the packaging is marked by two kangaroos, one large and one small, which is the earliest warm paste with the image of kangaroos, and it is also one of the best-selling products in Japan in the early years, but with the imitation of kangaroo packaging by many domestic businesses, this initial "kangaroo brand" has gradually declined. In September 2000, IRIS established Dalian Alice Household Products Co., Ltd. and began to carry out production in China, and IRIS products can be easily purchased in China.
 
IRIS only has two basic rectangular warm patches and foot patches, with packages ranging from 1 to 100 pieces, the large-size version is cheaper, and the warm patches sold in China are imported from Japan, but there are only ten pieces per box version, each piece is about 2 yuan. The average heating temperature of IRIS large warm patch is 53°C, which can last for 12 hours, and the foot patch is 38°C for 5 hours. IRIS warm patches have fewer styles and are enough to meet the basic efficacy, but the import price is more expensive, and the cost performance is not as good as that of domestic Beibei bears.