This is a package of (4) 4.3 * 4mm ball studs. Machined from steel with a 2mm hex head and black coated for smooth movement.
Specs:
4.3 head diameter
2mm hex head
4mm length of thread
ProFoam 2-STAGE was designed for major events with crazy high grip, when you need that little extra to cross the finish line first.
The 2 stage core helps keep tires from wadding up on the starting...