The Kushlan Products 350W Belt Driven Concrete Mixer is filled with features that makes this rugged mixer affordable yet ideal for the do-it-yourselfer or professional. Electric-driven, 21 RPM mixer. Supported by a totally welded durable heavy gauge steel frame and polyurethane flat free tires.The 5/16″ in. thick polyethylene drums are resistant to dents, cracks, and rust yet easy to clean. Easy for transport or storage, the 3.5 cu. ft. drum holds 2-80 lb bags of premix concrete. CE, UL, and CSA Approved.