These needles are the correct duration, and may not puncture the liners if thoroughly used WARNING: Item can't be returned or exchanged if liner is harmed or punctured on account of poor inflation or needle use A flexible liner created for different head designs provides convenience and stability Detachable moisture-resistant https://speedflex-adult-large96980.slypage.com/31497051/5-simple-statements-about-riddell-speedflex-adult-large-explained