Marshalltown Company MB48R 48" Round End Magnesium Bull Float - Made from the finest extruded magnesium available, Marshalltown Magnesium Bull Floats are lightweight and properly balanced to provide a professional, smooth finish. Choose between a round end or square end blade either with or without an adjustable RotaLeveler™ bracket. These concrete Bull Floats are 8" wide, come in a variety of lengths, and are made in the USA with global materials.