Unlike in-ground swimming pools, above-ground swimming pools are simply set up on a flat, solid surface. It is a perfect swimming pool for the garden because it can be erected straight onto the lawn and be taken down whenever it's not in use! The corrosion-resistant metal frames coupled with the triple layer side walls ensure your family and friends can enjoy your 4,678L capacity pool for many seasons to come. Made with Bestway's trademarked Tri-Tech construction, this material features a 3-ply reinforced layering system; a polyester mesh core encased in two layers of heavy gauge PVC, offering the utmost strength and durability.