NOTE: all inflatable jaw pads have to have an inflator pump, glycerin, and Distinctive helmet needle. Tend not to use an inflation needle with out glycerin as harm to the internal bladders could manifest. These needles are the right size, and should not puncture the liners if adequately applied WARNING: https://riddell-speedflex-adult-l23082.sharebyblog.com/30660435/the-5-second-trick-for-speedflex-adult-large