The new and improved Soft Roll casters from Frog Legs, Inc. now go by the name “EPIC” and the name says it all! A smooth 3-spoke design CNC machined out of 6061-T6 heat-treated aluminum (for you fellow gearheads), or in a composite hub. Both come with a long lasting urethane tire that aids in vibration absorption. These wheels are great in gravel and grass and float over cracks and cobblestones.