... DescriptionYou can both relax comfortably on the water with the Sevylor Inflatable Double Lake Mattress. Measuring 77 Inchx64 Inch, the ... securely. The mattress inflates and deflates quickly, thanks to Sevylor Feets Double Lock Valve, and carries the Air Tight Guarantee ... vinyl Park FeetN Feet Play system lets you snap multiple Sevylor floats together Mini Double-Lock Valve for quick inflation & ...