The Thermo King 900 is the newest technology in composter materials. Made from Thermo Len plastics and blended with recycled plastics, this unit works better than other “regular” unites (4-walls with a lid). This composter has extra large capacity (240 gallons) and is designed for large yards and lots of leaves and/or grass. This composter has an “easy-lock” system that is easy to assemble, no tools needed. Featuring thick walls measuring 4mm thick (most composters are only 2.5-3mm) to ensure stability. The Thermo King 900 has a very large top opening with 2 lids with wind “locks.” The Two large bottom doors are for easy removal of compost. Thermo King 900 is UV Stabilized and is high impact resistant in cold weather. 2 Year Warranty. Measures 40x40x40 Inch. Made by Graf in Germany.