Easy setup. Durable PVC and polyester with three-layer sidewalls. The built-in drain valve can be connected to a garden hose using the included adapter for easy water drainage. Self-adhesive underwater repair patch. The extra-strong sidewalls of this pool are made from Tritech, a three-layer reinforced material with a polyester mesh core embedded in two high-density PVC layers. This results in a material thickness of 0.40-0.80 mm, depending on the size of the pool, ensuring exceptional strength and durability. Steel frame with corrosion-resistant coating, 3-layer base support for additional wall stability. Seal & Lock System steel frame connection system to protect against water ingress into the frame. Mosaic print on the inside of the pool walls and floor. Easy disassembly and space-saving storage at the end of the season. The round shape is particularly easy to set up, offers increased stability, and requires minimal additional space outside the pool.