We originally started with just wood blocks, after a while we noticed that the wood was heavy and cumbersome to carry around. When it grts wet it just never seemed to get dry under the feet. We bought some different variations and so far the Camco Fasten 2×2 seems to be our favorite. We have a few sets which can be used under our stabilizer jacks or under the tires to level the trailer. The set comes with 10 blocks and a T handle to help organize and transport.