DuBro E/Z Brake System for Aircraft. Includes one system, to be used typically on the nose gear of any airplane. Works with 5/32" (.156") and 4mm diameter landing gear with the following DU-BRO wheels 2.25"-3.5" T, TL, SL, DL and R series. Useful in take-offs and landings where quick stops and tighter turns are needed. Adjustable tension so the brake can be on or off, or partial braking set during taxing and turning.