Features: Easy to convert Presta to Schrader, providing a wide ranges of applicability. Simple installation, no need for any tools, easily completes the nozzles conversion operation. Make of alloy materials, durable and reliable, ensuring a long service life. The adapter has good sealing performances to prevent gas leakage and ensure the effectiveness of inflation and exhaust. Small designs, easy to carry, convenient to carry in backpack or pocket while cycling. Specifications: Material: Alloy Color: Purpleness/Gold/Black/Silver/Deep Blue/Redness/Green Size: As shown in the picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 4pcs Bicycles Valves Adapters