These needles are the correct size, and should not puncture the liners if adequately used WARNING: Solution can not be returned or exchanged if liner is weakened or punctured on account of inappropriate inflation or needle use A flexible liner suitable for various head shapes supplies ease and comfort and https://adultmediumspeedflex97236.azzablog.com/31105715/how-much-you-need-to-expect-you-ll-pay-for-a-good-riddell-speedflex-adult-large