1.0.9mm PVC.Airtight design 2.Different sizes available No need of continuously blowing,Once inflated,the inside airpressure can hold for at most 5 days. Detailed Specification of the Inflatable Pool is as follows 1.Material: 32Oz 0.9mmthick PVC Tarpaulin 7. Workmanship: Welded Seams,Airtight Design 2.Size: Different sizes available 8.Supply Ability: 1000pieces/Month 3.Color: Different Color Avaliable 9.Price: Negotiable 4.Packing: PVC Tarpaulin Bag 10.Accessory: Air pump,Repair patches,Glue 5.WaterOutlet: Included at the bottom 11.Minimum Order Quantity: 1 piece 6. Pumps: Air pump included 12.OEM/ODM: Acceptable