These needles are the proper size, and should not puncture the liners if appropriately used WARNING: Products can't be returned or exchanged if liner is weakened or punctured resulting from poor inflation or needle use A versatile liner suitable for a variety of head designs provides consolation and stability Detachable https://arthurbedfr.weblogco.com/30865701/the-definitive-guide-to-riddell-speedflex-adult-large