Find any leak in an instant. With the you never have to fiddle with a bucket of water again. Move the compact tool over the inflated inner tube; the Styrofoam balls start dancing as soon as they detect the air flow from a hole. Indispensable for quick repairs, both at home and on the road. Additional information Ideal for on the road; Works without water. Works via airflow detection. 8711646205064 The is a handy tool to quickly find the hole in the tire, without the use of water. Due to its compact size, the Leak Detector is also handy for travelling. Move the leak detector over the inner tube and the Styrofoam balls will start moving due to the air flow in the event of a leak.