Up for sale is a Posture Pump Disc Hydrator Deluxe Full Spine Model 4100-S This disc hydrator is in EXCELLENT condition and may potentially be unused.  Due to no packaging, I am listing it as used. The set does not have any foul odors, staining or any sort of noticeable damage. I have inflated and deflated each of the 3 air bladders and found them to operate as they should. BONUS!!! Get it FAST with FREE USPS Priority Shipping!!! (Offer available in the USA only, all others to pay eBay Global Shipping Rates) Please review the photos for confirmation of the item description and the condition of the item as this is what you will receive.  If you have any question about this item, please ask before you bid and bid