These needles are the right size, and will not puncture the liners if correctly employed WARNING: Merchandise can't be returned or exchanged if liner is harmed or punctured as a consequence of poor inflation or needle use A versatile liner suitable for different head shapes offers ease and comfort and https://speedflex-adult-large60000.onesmablog.com/5-simple-statements-about-adult-medium-speedflex-explained-71434663