These needles are the correct size, and may not puncture the liners if appropriately used WARNING: Solution cannot be returned or exchanged if liner is damaged or punctured due to improper inflation or needle use A flexible liner created for different head styles provides convenience and balance Detachable moisture-resistant liner https://tysonzalek.blogacep.com/35906264/an-unbiased-view-of-riddell-speedflex-adult-large