35pcs Bike Pump Adapter - Schrader Valve, Presta Valve, Dunlop/Woods Tyre Valve Adaptor, Bicycle Tire Pump Adapter(av Dv Sv) with Ball Pump/air Pump/Compressor Adapter for Mountain Road Bike Toy Ball : Amazon.co.uk:
Schrader vs Presta – which valve standard is best for you? | off-road.cc
Schrader Valve v Presta Valve | Bike Tire Valve Types