NOTE: all inflatable jaw pads require an inflator pump, glycerin, and special helmet needle. Don't use an inflation needle with no glycerin as damage to The inner bladders could manifest. These needles are the proper size, and should not puncture the liners if adequately used WARNING: Products can't be returned https://louisgmqtn.losblogos.com/30340590/adult-medium-speedflex-an-overview