These needles are the right length, and should not puncture the liners if adequately applied WARNING: Product cannot be returned or exchanged if liner is ruined or punctured because of inappropriate inflation or needle use A flexible liner suitable for many head styles provides comfort and steadiness Removable humidity-resistant liner https://beaugaaqb.blogdomago.com/30140208/5-simple-statements-about-riddell-speedflex-adult-large-explained