This is a full set of 31pcs - for Arrma 4s Kraton / Outcast
- (2) 5x8x2.5
- (4) 5x10x4
- (4) 8x16x5
- (7) 10x15x4
- (8) 12x18x4
- (1) 15x21x4
- (1) 10x15x4 Flanged
- (4) 6x12x4
The are great quality bearings from the same manufacturer that is used by the top name RC bearing companies.