Ice Box, Cooler Box, Ice Chest 1) Roto-molded, one piece, seamless 2) 60mm thick insulation PU layer 3) Food grade LLDPE. Rotational Molding Plastic Ice Box, Cooler Box, Ice Chest Features: One-piece, roto-molded polyethylene construction is extremely durableConstructed of food-grade material that is dry ice compatible and UV resistantA minimum of two inches of polyurethane foam throughout the ...