Characteristics: Waste Dirty Air Switch Button with Snake Self-Lock With self-lock on the switch, the open, press the swith again, the lock. This kit has been replaced with your old Dirty Hall with air switch, if your old not the air switch (just the switch), this kit will not fit for the Specifications: Voltage: 200-250V Current: 16A Length: 100cm Air hose diameter: 3mm Quantity: 1 Set Note: If you fail 1-3mm due to manual measurement. Suddenly make sure you don't bid too hard Becau