Part type terminology
Adjustment Tool: Used to adjust the core settings. Includes 6 dark or light blue nuts.
Center Piece: Part that the screw and spring goes into and connects to the core
Center Cap: Attaches to the top of the center piece
Core Assembly: Consists of the core and complete set of GES springs (includes extra colors)
Corner: Complete corner piece
Edge: Complete edge piece
Please note that the logo may vary for white center caps.