Silca hoses, heads and adapters for bicycle pumps. Lever-locking design holds tight on all Schrader valves Environmentally friendly, electroless nickel plated brass and stainless steel construction Fits all 1/4" and 6mm pneumatic hose No plastic parts to break or wear out Connects much faster than thread on type chucks and disconnects instantly with no air loss from valve Silca Hoses, Heads, and Adapters Pump Part UPC: 853740005107