Parker Hannifin linear positioning stage, model 4412, 5 inch platform, 2 inch travel with micrometer. This came from a 3-axis stage I've had for a while, broke it down into individual stages for resale separately. You can buy one, two, or all three, we can make a deal for multiples. One has some fading of the black anodizing, will be the last one to go. $100 each or best offer.