Propel Trampolines are some of the most common trampolines in the marketplace today. They can be found for sale at major retailers like Kmart and Walmart, as well as through online retails such as Because of the low price-point, Propel trampolines are some of the most popular trampolines today. Visit the links below to read the Propel Trampoline reviews from real-life Propel trampoline owners.