JMT KDS Micro Screw Heli Pitch Gauge for All Trex 450 500 550 600 Rc Helicopter
1. FOR: All T-rex 450 500 550 600 ,There are a similar size with a helicopter.2. quantity:1 pcs3. 100% Brand New!4. Specification:pitch gauge:+12/-12Dimensions:length 134mm,width 60mm