Patented, 4-wheeled Utility Flatform Dolly. Takes only Seconds to Open and Close. Major plastic stress points are made of ultra-durable nylon; other plastic pieces are Polyproplene. Fits virtually anywhere for storage. Tubing material of aluminum and stainless steel. Extendable Handle for easy manouvering. SXWT-PC532B: This Combi Pack includes the SXWT-PC532 Utility Platform Dolly and SXWT-FT505 Folfing Utility Basket.