Oh my God. I bought a set of these blades. Holy Crap. I had little shakey shakes when I would toss the heli-around hard. I chalked it up to the 3&1 board. Anyhow, I put these rail blades on the 130X, and they were gone. The thing is slicker than deer guts on a door knob. I wanted to use orange blades to make it my Clemson tailgate heli, but it may just have to settle with the white on the rails.