... 3.Eco-friendly material(PP,PE,HDPE...) Gel ice boxWe manufactured gel items more than ten years ... 1995.Our gel item including:Gel cooler box,ice brick,intant hot or cold pack,hot and ... health gel compress.... 1,usage-Put the gel ice box into refrigerator or freezer to make it ... long lasting cold temperatures, keeping cold in the refrigeratorwhen out of electricity, keeping food, fruit fresh and drink ...