Stone Construction Equipment's "Stomper" line includes the model XN650 and three models (XH670, XH730 and XH840) powered with four-cycle, gasoline engines. All three of the four-cycle models use a Honda engine, rated at 3 horsepower in the two smaller models, and 4 horsepower in the XH840. Operating weights for these units are 132, 140 and 145 pounds, respectively; and shoe size is 10 inches by 13 inches for the XH670, and 11 inches by 13 inches for the two larger models.