Can be built-in inflatable mouthInflation/deflation/leak-proof inflation nozzleThickenThicken to 0.4MMImported environmentally friendly inkGreener and saferLess smellGood material, good ink, of course less odorAnti-leakageThicker material, anti-leakage nozzle, really hard to leakThoughtful bubble bottomTake care of your children and make stepping more comfortableWhat we sell is not just a commodity, but an attitude to life!We will do our best to add a different color to your life! ——DUTUIAfter-sales service:100% satisfaction promise, any quality problems of the product will be dealt with in time, please feel free to contact us by email, your inquiry will be answered within 24 hours, and give you a satisfactory shopping experience.