hard cooler case 1.5L 2.For medication, beer cooling, fishing, boat 3.endurable and solid Introductions ... the national sanitation standard , safty use3.the case is very firm, collision and corrosion resisting, ... sharp molding according to customer' s requirement5.the case can retain heat for many days, also ... price 10. OEM: acceptable plastic hard case cooler box for medication cooling,picnic,fishing