... the drink(milk,beer),electronic parts etc. drink cooler bag:1:Net weight:50-3600g size:100*200mm ... caustic3:Consist of high polymer materials,clearwater,outer bag.4: Easy to use and convenient to carry ... precool in the refrigerator(boiling water) in advance.6:Reusable7:Long lasting time,can meet the special ... the size,weight,colour,shape,inner material,outer bag material, perfect packing gift box.are all ...