The No Tool Setup means that you'll have your Bestway Fast Set pool up and ready for summer in no time! The process is simple - just select a level surface, inflate the top ring, and the pool will rise as it's filled up with water. The sturdy Tritech liner is made out of a durable material that is reinforced for strength and puncture-resistance. When the season's over, storage is fast and simple. Your summer won't be complete without the Bestway Fast Set Pool!