Bausch Lomb 71-21-35 Keratometer W/ American Optical Rolling Cart Opthamology This is a used item. This unit is mounted to a rolling cart. All of the knobs and moving parts feel like they work fine. We are do not to see any noticeable scratches or scuffs on the optics. The internal light comes on as can be seen in the pictures. The cart rolls fine. We are not able to evaluate this unit professionally but it does come with a 30 day warranty. Due to the size and weight, this unit will need to ship by freight. The cost to a business address within the continental United States will be $229.00. Ad $90.00 for residential delivery. WB d 80318218