The jumping area is surrounded by 3 sides of mesh safety netting to protect your children from falling while jumpingair leak from all the seams is necessary because the product is inflated by constant air flow. Pls buy with confidenceif any question for this productwelcome to contact us. Manufacturered by CHIFAN. Material:PVC. Size:355X300X230cm. Perfect for birthday gifts Christmas gifts or to keep little ones busy whenever. The Bouncer will delight all children!