Take a deep breath in, then out. The CORE Speed Valve 2.1 will accept all standard pump hoses without attachments. This provides the Speed Valve 2.1 with the biggest, physically possible, flow of air. It’s simply not possible to pump up a kite with less effort and in less time. Even deflating the kite is noticeably quicker and easier too. This valve fits to all latest CORE kites with the pre-mounted velcro around the valve.