Tarot 450SPORT/PRO update feather shaft combo kit TL48016

Tarot 450SPORT/PRO update feather shaft combo kit TL48016:
Product Description: for 450SPORT/PRO original main rotor holder bearing outside diameter 8MM, update feather shaft combo kit.  
Specifications:
450DFC affine abscissa × 1 (M2. 5xΦ4x54mm)
12.9 Cup head hexagonal screws × 2 (M2. 5x6MM)
Washers × 2 (M2 5x4.8 x0.5MM)
Thrust bearing ×. 2 (Φ4.0xΦ8x3.5mm)
Thrust bearing circlip × 2 (M4x6.5 x1.5MM)
DFC horizontal axis washer × 2 (M4x7.5 x1.0MM)