Liberty Push Chair Product Specs | Measurement Chart | User Manual | Comparison Chart The Liberty is an all-terrain push chair with lockable swivel front wheels for optimum versatility. With the flip of a switch, the Liberty’s dual front wheels either swivel for extreme maneuverability or lock beneath the push chair for long distance walking over any terrain. The incorporation of Quick-Fold Technology makes the Liberty extremely easy to transport and store. Not intended for jogging purposes     HCPCS code E1037 assigned by SADMERC. Our push chairs are tested and certified by: Patented Quick-Fold Technology