This is a replacement Estes Proto X Rotor Blade Set. This set includes a total of four blades; two front and two rear.
This product was added to our catalog on February 13, 2014.
Monday, May 4 2015 (about a year ago)
Estes Proto X Rotor Blade Set (4)
Original rotor blade set for Proto X. Works great, easy to replace, and cheap. Amain shipped them fast.