Established in 1989, Works Connection continues to produce quality products for all your moto needs. Lets air supply into the fuel tank, but stops fuel from coming out. Installs in place of the stock overflow hose in seconds. CNC-machined from 6061 T-6 billet aluminum. Anodized rich midnight black with distinctive laser-etched "WC" logo. Durable 45 mm long mounting hose included.