Part type terminology
Accessory box: Includes screwdriver, two sets of springs, and extra magnets
Center Piece Assembly: Part that the screw and spring goes into and connects to the core. Includes the square bracket.
Core Assembly: Consists of the core and complete set of screws and springs
Corner: Complete corner piece
Edge Set: Includes both outer edge pieces
Inner Edge + Small Inner Pieces: Includes the inner edge and the two small pieces that attach to the inner edge.
Outer Center Set: Includes four outer center pieces
Please note that the logo may vary for white center caps.