Traxxas 1539 U-joints (2) 3mm set screws (4)

This is the: 

Traxxas U-Joint Set with Set/Grub Screws for the Blast 

This item is intended to replace your u-joint should it be performing in a suboptimal manor for any reason. This set includes:

- Two(2) u-joints
- Four(4) set/grub screws (3mm)