Heavy duty water mat: Floating lake mat with outstanding buoyancy and stability when inflated; made from material 60% thicker than most pool floats; weight capacity: up to 500 pounds Connectable floating mat: Built-in zippers on 3 sides to connect as many mats as you want, and create an even bigger island; great for use in the pool, lake or ocean Built-in anchor points: Use the mooring loops to anchor your floating mat to a boat, dock, or shore Water-activated fabric: The luxurious Cozi-Soft Fabric's color gets bolder and brighter when wet Large floating water mat: Expandable platform for you and friends; dimensions: 67.5 x 67.5 inches inflated length; packaging may vary