1.Made of Food-grade PE, Non-toxic 2.has big volume and light weight 3.long time cold insulation 8L Rotational Molding Cooler boxMade of Environment-friendly PE,Non-toxic,has big volume and long time cold insulation,can keep the article like medicine ,food,and other heat-sensitive goods at safe temperature,so it is a good choice for outdoor movement,such as picnic,barbecue,camping,and so on.Key ...