"Sportsstuff Compressor Adapter Brand New Includes 90 Days Warranty, The Sportstuff 10-1010 Compressor Adapter allows you to inflate or top off your tube using a standard bicycle tire pump or air compressor
The Compresser Adapter only fits on the screw-on type valves like the 'boston' valve (aka 'speed valve') or multi-valve. The Compressor Adapter is not for use on push-in style valves like the Speed Safety valve, over-sized safety valve, or safety valve. 10-1010 Features: Product # 10-1010, Compressor Adapter, Easily Inflate or Top Off, Uses standard Bicycle Tire Pump or Air Compressor, Works w/ Boston Valve or Multi-Valve, Only Fits On Screw-on-Type Valves"