POLYPROPYLENE (SLED | SWIVEL | 4 LEG ARM - NOT SHOWN) POLYPROPYLENEPOLYPROPYLENE WITH SEAT PAD (SLED | 4 LEG ARM | SWIVEL - NOT SHOWN) POLYPROPYLENE WITH SEAT PADFABRIC (SLED | SWIVEL | 4 LEG ARM | SWIVEL ARM) FABRIC 140 |