3B Scientific A880 5 Part Shoulder Joint Model with Rotator Cuff, 7.1" x 7.1" x 9.4" Life-size human shoulder joint model for anatomical study of rotator cuff musculature and joint movement Dissembles into five parts for effective demonstration Removable muscles to allow simulation of range of motions, including abduction, adduction, inner rotation, and outer rotation Colored muscle origins and insertions for accurate identification Mounted on stand for display