Orbz balloons are some of our most favorite mylar balloon. They provide huge impact and look stunning. Typically used in balloon garlands, balloon column toppers, or suspended around a room. They can be inflated with air or helium and have a self-sealing valve. Cannot be fully inflated with a straw and breath alone. The balloon needs to stretch to form and requires more power from an electric inflator, balloon hand pump or helium regulator. If inflating with helium, it requires the latex valve to be used. The latex valve will provide enough force to fully inflate the balloon. Please note that during inflation, it may make a popping or cracking sound as it expands. This is from the seams separating and should not alarm you that the balloon may be popping. Unlike other orbs, this item will not inflate until all the wrinkles are gone. It's important to not over-inflate, and they will still appear with wrinkles when fully inflated. They can be inflated until they are firm.