Features: Upgrade 7 Colors Fuel Tank Breather Hose, the hose is made of soft PVC which is more practical than the old hard pipe on the market. The soft PVC hose is easier to install on the fuel tank cap. Your fuel tank needs to let air in to replace the fuel that has been used. As dirt bikes often end up on their side or even upside down its handy to not have the fuel pour out and dustproof when this happens. Specifications: Type: Fuel Tank Breather Hose Material: CNC Aluminum + PVC Tube length: approx. 6.8cm/2.67" Tube inner diameter: approx. 5mm Tube outer diameter: approx. 8mm Fuel cap inner diameter: approx. 50mm Fitment: Fits most 4-stroke Pit bikes. Features: CNC machined & Colour anodised & Two-way breather Note: 1. Please check the size carefully before making