Multi-e valve adapter.Light, easy and convenient to install.It can convert presta valve into schrader valve.It can cover motorbikes and bicycle and MTB.Presta valves are more effective for road racing and all terrain bicycles with narrow rims into which they fit perfectly well. Item Name: Valve AdapterMaterial: CopperQuantity: 5 Pcs/Pack (Same Color)Type: Presta Valve to Schrader ValveFeatures: Durable, O-Ring Inside, Copper Material, MTB AccessoriesSize: 15mm x 9mm/0.59" x 0.35" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:5 x Valve Adapters