Aerobin™ 200/400 Compost BinDESCRIPTION The thermal insulation in the Aerobin conserves heat, leading to rapid breakdown of the biomass, and works efficiently year round, even in cooler regions. There is no need to turn the biomass, and it is pet and rodent resistant. It has little odor and can kill noxious weeds and seeds. Aerobin 400 Compost Bin Our Best Seller! FEATURE The ULTIMATE consumer composter The First Composter Which Requires No Extra Work No Turning Required It