These needles are the proper duration, and may not puncture the liners if thoroughly utilised WARNING: Product or service cannot be returned or exchanged if liner is weakened or punctured due to inappropriate inflation or needle use A flexible liner created for different head shapes delivers convenience and security Removable https://adultmediumspeedflex80505.pointblog.net/not-known-facts-about-riddell-speedflex-adult-large-72853166