180 AirJet Massage System At the touch of a button, surround yourself with thousands of therapeutic bubbles and experience an intense full-body massage thanks to the powerful integrated 180 AirJet system. Premium Drop Stitch Material Ultra-rigid exterior delivers both structural integrity and long-lasting durability. Securely fastened together with thousands of tiny threads and tightly sealed, the inflated cavity provides unsurpassed strength without sacrificing portability. Freeze Shield Technology Use your Lay-Z-Spa all year round thanks to Freeze Shield. Activating the pump automatically when it gets cold outside, you can safely use your hot tub when the ambient air temperature drops below 4°C. Easy to Setup Taking less than 5 minutes to inflate, setting up a Lay-Z-Spa is easy ad requires no tools to install. Inflate with pump Connect pump to Lay-Z-Spa Fill with water and enjoy!