Overview Product Videos Reviews Product Description Posture Pump features up/down motion promotes disc lubrication/joint nutrition. Portable, easy to operate. Product Videos Videos Hide Videos Show Videos Posture Pro: Deluxe Full Spine Model 4100 Instructional Custom Field Product Reviews Write a Review Write a Review × Posture Pump 4100 Full Spine and Cervical Combo Unit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *