Brand: SmartRacing Products
This is the same aluminum slider block supplied with the Smart Camber Tool (Part No. 3764). The block fits into the top slot of the camber frame, and a contact pin threads into it. The block is designed to slide up or down in the slot to fit different rim sizes. When you tighten the contact pin, the block will be locked in place. Overtightening the contact pin can strip the threads and lead to inaccurate measurements.
Sold individually; one required.