This is a bearing kit by Avid RC for the Traxxas TRX-4.
12 x 5x11x4 Revolution
6 x 6x13x5 Revolution
4 x 10x15x4 Revolution
4 x 6x12x4 Revolution
4 x 4x10x4 Revolution
3 x 5x8x2.5 Rubber
2 x 12x18x4 Revolution
2 x 15x21x4 Revolution
2 x 7x14x5 Rubber
1 x 5x10x4 Revolution