User-friendly features to make the toughest Drain Cleaning jobs easier and hassle-free ?" (10 mm) cable best for 1" to 3 Inch (40 to 75 mm) Lines Integrated Transport Cart " easy movement to and from the job site, the heavy-duty, large wheels easily navigate over bumps and up stairs Retractable Handle " high-handle height during transport "Solid Core" Cable " uses tough ?" (10 mm) Integral Wound (IW) solid core cable that is rugged and kink resistant AUTOFEED" Control - offered as an accessory, this patented, automatic cable feed powers cable Inches and out of the Drain. Reverse the direction of the AUTOFEED and the cable feeds back Into the drum.