Economy Round PensAvailable in 40', 50', 60', and 70' diameters, these Economy Round Pens are constructed from 12' Economy Panels and a 6'x9' Economy Bow Gate. RP40, RP50, RP60, RP70 Economy Round Pens Available in 40, 50, 60, and 70 diameters, Economy Round Pens will fit the needs of most any horse owner looking for a safe environment for working horses. Whether you are starting a young colt or working with a seasoned horse, there are few training tools for all