Features: 

The standard size adaptor fits most bike pumps.

Lightweight, easy and convenient to install.

Convert a presta valve to a schrader valve, also turn a valve into a US valve.

Valve Dust Caps Durable,waterproof and anti corrosion. Perfectly fit on the valve stem of motorcycle, bicycle, cars, trucks, etc.

Product Specification:

Valve Adaptor Material: Aluminium alloy

Package Includes: 

1 x Presta to Schrader Bicycle Valve Adaptors

Note: 

1.Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. 

2.Please allow 2-3% error due to manual measurement.Please make sure you don’t mind before you mid.