2 PCS Racerstar NMB Bearing 3x8x4 1.5x4x2 3x6x2.5 4x11x4 4x9x4 for 2205 2306 Motor RC Drone 

Specification:
Brand Name: Racerstar
Item Name: NMB Brushless Motor Bearing 
Optional Size: 3x8x4 /1.5x4x2 /3x6x2.5 /4x11x4 /4x9x4 (  Inner Dia. x Outer Dia. x Height.  mm)
Quantity: 2 PCS
Application: 
3x8x4 Version: Compatible with 2204/ 2205/ 2206/ 2207/ 2212/ 2216 etc. 22XX Series Motor
1.5x4x2 Version: Compatible with 1102/ 1103/ 1104/ 1105/ 1106 etc. 11XX Series Motor
3x6x2.5 Version: Compatible with 1806 etc. Motor
4x11x4 Version: Compatible with 3508/ 3515/ 4114/ 4108/ 2814/ 3536 etc. Motor
4x9x4 Version: 2305/ 2306/ 2307/ 2508/ 2507 etc. Motor

Package Included:
2x Racerstar Motor Bearings