Description: For 140cc,150cc SSR Pit Dirt Bike. Simple plug-in installation, let you use more labor-saving. Five Vent Tube replacement at will, to prevent damage can not be remedied. The Vent Tube has two-way valves that allow air to enter but prevent fuel from escaping.In addition, the spool allows easy rotation of the fuel cap. One way valve for preventing fuel back flow from the fuel tank in the event of a fall, Keeps the fuel tank air ventilated, but does not let fuel flow out. Specification: Color:Red Material:Plastic Size Chart: Inner diameter:5mm/0.20in Overall length:66mm/2.60in Package Includes: 5 Pieces Gas Tank Cap Vent Tube Note: Please allow 0.5-1 inch difference due to manual measurement. (1 inch=2.54cm) The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding