Weight:7g/pcs
Main rotor holder x 2
Aluminum collar x 2 (5x3x1.5)
Bearing MR63ZZ x 2 (3x6x2.5mm)
Linkage ball x 2
Cross screw x 2 (M2x6.5)

Needed from existing setup & also sold seperately-Bearing 693ZZ x 4