Align Pilates Platform Extender for C-Series ReformersWant to add variety to your reformer workout? Extend your Align Pilates C Series Reformer by adding a platform extender for an extra bit of padding for the feet when performing standing or kneeling exercises. The platform extender can also be used in conjunction with the mattress converter to convert your reformer into a complete flatbed. The fully flatbed can be used in conjunction with the Half Cadillac to add additional repertoire or as a mat work