1. Material: High durability fire-retardant 18OZ Tarpaulin, which has 3 layers. Two coated side with a strong net inside. The flame retardant meet BS7837. UV Protect, sea water protect. 2. Stitching: Providing double stitching everywhere and quadruple in areas of high tear and at bottom stress point to make sure the inflatables are strong. 3. Reinforestrips: Make reinforcestrips at the bottom joint and each corner On the main base. 4. Deflation: Heavy Duty quickly deflation zips. 5. Accessories: Blower, repair kit (including glue, PVC material pieces, thread needles), Bag for stock, etc.