1. Around the inflatable will have D rings to fix, when you use the inflatable, must make a good wind protection, use the sandbags and windproof links below gentle breeze, if the wind more stronger, stop playing.

2. Different fence height for different inflatable castle: if the castle is below 40 square the fence height is 60cm, 40 square or more than 40 square the fence need 70cm, and for the inflatable slide, fence height is 90cm.

3. According to the sewing technology characteristics,different sewing use in different parts. Double stiching usually use in the place which have a bigger force. And concealed wiring more beautiful, if use them together will make the air tightness.

4. After repeated experiment, if want to make the lowest limit leakage and increase the tensile strength of the sewing parts, sewing needle pitch should be controlled between 4.2-4.5mm.