Easily inflate and deflate your balloons with our user-friendly self-sealing valve system. Simply locate the valve, use a pump or straw to inflate slowly, and watch as it seals automatically at 90% air capacity. To deflate, insert the straw, press gently, and release all the gas effortlessly. Perfect for parties, events, and decorations. Say goodbye to the hassle of tying knots or using clips - our balloons make setup and cleanup a breeze!