These needles are the right length, and may not puncture the liners if thoroughly utilized WARNING: Products can't be returned or exchanged if liner is damaged or punctured on account of inappropriate inflation or needle use A versatile liner created for various head styles offers convenience and stability Detachable moisture-resistant https://kameronmpicc.answerblogs.com/30920008/the-single-best-strategy-to-use-for-adult-medium-speedflex