Specification Material: plastic, stainless steel Length: 4.3cm/1.7inch Width: 4.6cm/1.8inch Packing quantity: 2PCS globe valves, 4PCS clamps Applicable to: 494768 493960 698183, 698181, 697947, 5019H and other models Feature Fits 1/4 inch fuel pipe. Strong, corrosion-resistant, durable, not easy to fade, can be used for a long time. At the end of the lawn mower season, if your lawn mower fuel line has a shut-off valve, close the valve and run the engine until it exits. This ensures that all fuel is used up in the carburetor before storage If there is no shut-off valve on the fuel line of the lawn mower, please consider installing one. Otherwise, empty the fuel tank and run the engine until it runs out of all fuel. When storing equipment in storage buildings in garages or mowing rooms during the season, shut-off valves should also be used as a safety function. Due to needle valve failure or carburetor leakage, it contributes to fuel leakage.