PILATES F3 FOLDING REFORMERF3 Folding Reformer Features Though designed for home use, the F3 reformer shares many of the key features of our commercial reformers, including the same music wire springs, ropes, and straps to give you a ride experience of par with leading commercial machines. The F3 offers fluid, progressive resistance, and a range of adjustments to personalize the machine for your workout. The aluminum runners and quality PU wheels ensure a smooth and quiet ride.