An expandable interbodyspacer (10) is provided thatincludes a pair of oppositely facingendplate components (20, 40) and aninterior component that includes oneor more vertically extending stacksof arranged C-clip members (70)radially surrounding one or morebosses (30) protruding interiorly fromone of the endplates, wherein thesize and configuration of the bossesand the c-clip members are designedto allow the incremental expansionof expandable interbody spacer.
