1. Double head heavy duty zipper
2.90 cm long, can be opened and entered by adults
3. With Velcro protective cover, high price and good 5cm sticky strong Velcro
The inner safety air flap is designed to slow down the air leakage at the opening of the zipper in the event of an emergency power outage, so as to buy more time for the children playing inside the product to escape.
4. Quantity, location
Decide how long to deflate and pack
Too much quantity will lead to poor air pressure, too little will lead to a long deflation operation time, and the internal gas will not be easily discharged when packing.
Symmetrical position and vertical opening of the air port will speed up the deflation.
