Features threaded cuffs for full compatibility with the MagLock Helmet Air Kit, while still maintaining a secure fit on MAC, MAC-XC, Parker Pumper, and other popular helmet air systems (all sold separately). Designed to work with both threaded and non-threaded connectors. No cutting, no glue! Features: Lightweight construction minimizes helmet strain during use. Flexible memory shape manually collapses back after use. Secure cufflink ends with internal ribs or threading to prevent disconnection. MagLock compatible with updated threaded ends. 1.25" inside diameter for consistent airflow performance. Compatibility: MAC, MAC-X, MAC-XC, Parker Pumper, and other popular helmet air pumper systems. Cuff ends support both standard air intake and threaded MagLock Helmet Air Kit. Detailed Specifications: