The low-profile base is welded aluminum with a rubberized no-slip surface. Aluminum is more rigid than steel, does not rust, and does not conduct the heat. A great safety feature for the dogs paws. Solid aluminum posts unscrew from the base making the base easy to store, transport. The Activedogs Competition Weave Pole System Agility Dog Weaver Poles comes with two heavy duty stakes. The Aluminum base has predrilled holes for the stake anchors. If using the weave poles indoors we suggest sand bags.The poles are made from the high grade colored PVC. Which is attractive, durable and long-lasting furniture PVC. This Furniture Grade PVC is UV corrosion resistant and infused with modifiers so they will not deteriorate and bend in the outdoor sun light. Made in the Weyerhaeuser, WI. The 2x2 Weave Pole System comes ready to set up and train with no tools required for assembly. This product number is for one base, two anchors, and two weave poles. You can purchase multiple sets to achieve the desired number of weave poles you choose to train with. The base connectors are sold separately.