The cab of the manufacturer’s HD+ tandem rollers is fully adjustable. The seat moves together with the operator’s console and swivels 180 degrees. The cab includes an adapter to charge a phone or small electronic appliance. The HD+90 operates at 10 tons, the HD+110 at 11 1/2 tons. Both have drum widths of 66 in. Wirtgen America. 615-501-0600.