We think these permanent jack pads make a fantastic investment and take the hassle from adding jack pads each time you jack your RV. The company has a great reputation and describes the product as “fancy shoes” for your RV. You don’t have to worry about storing dirty used blocks after use, and you won’t have to think about positioning jack pads and RV leveling jacks again. This product makes everything easy. These jack pads are simple to install and fit around a standard nine-inch round jack foot. It literally takes a few minutes to install and then you won’t have to worry about it ever again. These pads can withstand some serious weather conditions and protect your jack foot from rust and damage. Another feature that we like is that this product is environmentally friendly and is manufactured from recycled American tires.