Poolmaster's Sub-Aqua Islander provides comfortable semi-submerged seating for multiple persons. The large perimeter air chamber provides back and arm support and acts as main floatation ring. Two inside rings are filled with water and act as island's ballast while providing seating slightly below the water's surface. Center opening provides ample room for legs or for in-and-out swimming access. Made with 12.8-gauge vinyl and measures 65" in diameter, approximate deflated size.