... 3.Eco-friendly material(PP,PE,HDPE...) Gel ice boxWe manufactured gel items more than ten years since our established in 1995 ... .Our gel item including:Gel cooler box,ice brick,intant hot or cold pack ... the refrigeratorwhen out of electricity, keeping food, fruit fresh and drink iced outdoorse) Reusable, Non-toxic, Non-caustic, No peculiar smell3 ...