These needles are the right length, and may not puncture the liners if effectively utilised WARNING: Merchandise can not be returned or exchanged if liner is destroyed or punctured due to incorrect inflation or needle use A flexible liner made for a variety of head shapes delivers consolation and stability https://kameronmpicc.answerblogs.com/30920008/the-single-best-strategy-to-use-for-adult-medium-speedflex