Well balanced;won't tip or wobble.Raised side-wall for safe playing,Suitable for Indoor or Outdoor Use. Product accessories:1 x Inflatable bouncy castle,Blower,Special hand bag,plastic nails,patch Fan power: 450W Instructions for use: 1. Remove the trampoline from the packaging bag, spread out and flatten out, pay attention to the inflatable tube close to the fan. 2. Extend the inflatable tube and cover the air outlet of the fan with miraculous adhesion. 3. Turn on the power supply of the fan. During the use of the product, the fan must be on all the time. 4. Drive into the ground nail to fix it, and pass the ground nail through the trampoline. Note:All products are measured manually,with slight errors,please understand that due to different light,each picture will have different degrees of color difference,please refer to the actual product.