The original Whip Mix® articulator based on research of renowned gnathologist Dr. Charles Stuart.Model 8500 Articulator Features: Adjustable condylar inclination: 0-70° Adjustable progressive side shift: 0-40° Adjustable intercondylar distance: S (96mm) M (110mm) L (124mm) Spring latch assembly holds articulator in centric position (when locked) Spring latch assembly allows for easy separation of upper and lower members (when released) Comes complete with: flat incisal table, dual-end incisal pin, 4 disposable mounting plates, instruction manual