Have plenty of fun in your backyard in this Bestway Steel Pro swimming pool! The extra-strong side walls of this swimming pool are made of Tritech. It is a 3-layer reinforced material consisting of laminated heavy-duty PVC and a polyester mesh, making the side walls extra-thick, offering superior strength and durability. This above-ground pool has a corrosion-resistant steel frame. Thanks to the built-in flow control drain valve, it is easy to discharge the water. The above-ground pool can be set up quickly and easily. Just lay the pool down on the flat surface, install the whole frame, and fill the pool with water. It is easy to fold the swimming pool for storage and transport.