Would not recommend for a heavier motorhome. I have a 36 foot train behind an RV trailer. I bought these and immediately noticed that the plastic pad slides easily if it doesn't fit under the RV tires. Then I accidentally rolled my camper over one of those wedges and my camper smashed it. Poorly! I replaced these pads with heavy duty black rubber pads. They are a bit more expensive but worth it. They hold up well and I feel like if I accidentally rolled the camper over the rubber pad it would survive. Conversely, a Camco product is probably a good solution for a light RV, but don't use it for a heavier RV.