Shop for Floats and Toys from Hayneedle.com! This Swimline Sphere Floating Habitat is a spherical playground on water -- perfect for entertaining the neighborhood kids for hours on end. The inflatable pool has a weight capacity of 225 pounds and key features include windows for kids to crawl through and rest upon.About SwimlineFamily owned and operated since 1971, Swimline has grown to be the largest manufacturer of above-ground swimming pool liners in the world. They're also the largest importer of in-ground and above-ground swimming pool covers and related accessories. Swimline founded International Leisure Products in 1990, branching out to pool toys, games and accessories. They grew once again in 1994 when Leisure Products acquired United Leisure Industries Hydrotools Inc., an manufacturer of pool accessories like leaf skimmers, brushes and vac heads.