Bestway Steel Pro Deluxe Splash Frame Pool Set has heavy-duty PVC and polyester 3-ply sidewalls. Built-in flow control drain valve makes it easy to drain by attaching the valve to a garden hose (with included adapter) to drain away water. The extra strong side walls of this pool are constructed with Tritech, a 3 layer reinforced the material with a polyester mesh core encased between two layers of high gauge PVC material. This creates a total thickness of 0.40-0.80mm (16-32 gauge) depending on the size of the pool, offering superior strength and durability. This pool equipped with Seal and Lock System for a safe and secure pipe connection. It has a rectangular shape provides more area for swimming and playing. It is maximum water capacity 14970 Litre.