Wrap-Up Next SG Shock 2 Primary Component - BlackWrap Up Next (#0673 FD) SG Shock 2 Primary Component Black Feature: For: Wrap Up Next SG Shock 2 Includes main component parts of SG Shock 2. Excluded piston, shock shaft, diaphragm, and O ring. You can combine this SG Shock 2 Primary Component set with your choices of piston (10mm diameter), shock shaft, diaphragm, and O ring, which are abundantly lined up as setting parts, to create your own shock! Ideal as a basic base for 10mm diameter dampers. 2