These needles are the proper length, and should not puncture the liners if correctly employed WARNING: Merchandise cannot be returned or exchanged if liner is damaged or punctured due to inappropriate inflation or needle use A flexible liner made for a variety of head styles offers consolation and balance Removable https://riddell-speedflex-adult-l49826.blogmazing.com/30162811/details-fiction-and-speedflex-adult-large