High-precision digital controlled lathe process with imported SUS316 stainless steel and the integrated forming technology present refreshingly creative and unique. Compatible Devil 380 FAST. Packaging: Tail Rotor Hub x 1 Washer(Φ4.5xΦ5.9x0.5mm) x 2 Socket Head Screw(M2x6mm) x 2 Washer(Φ2xΦ4.5x0.5mm) x 2 Set Screw(M3x3mm) x 1