These durable and attractive compost bins feature a unique wall panel design that allows air to flow continuously upwards along all 4 side panels significantly increasing aerobic action. They are durable and strong with 5 mm thick walls. Polyamide (nylon) corner clips are strong, yet still easy to remove for quick and easy disassembly. Available in 77-, 112-, and 187-gallon sizes (each sold separately). The hinged lid stays securely affixed, even in gusty conditions and removes easily with a sliding lock. The lock prevents possums and raccoons from entering the bin. Two side doors allow you to remove mature compost (or simply lift the unit for access to compost). High grade polypropylene copolymer resin with up to 40% recycled material. Resin is UV stabilized, which helps prevent color fading. Universal Rodent Resistant Base is available for the 77- and 112-gallon bins (sold separately) and included with the 187-gallon bin. Made in Austria. 3-year warranty on bin.