BARELY USED. IT LOOKED MUCH BIGGER IN THE PICTURE WHEN I BOUGHT IT. I BOUGHT IT FOR PISTON BALANCING, IT WAS TOO SMALL. DECADES OLD, LIKE NEW. COULD NOT BALANCE CONNECTING RODS, SO I ENDED UP GETTING A 3 RAIL TRIPLE BEAM, WHICH I USE TO THIS DAY. I MUST HAVE MOVED THE CAMERA BECAUSE THE 2 RAIL HANGER HAS 4 RAILS. LOOKED AT BOTH PICTURES, THE DOUBLE LINE IS A SHADOW. THIS WOULD BE GOOD FOR GOLD AND SILVER. ACCURATE TO ONE HUNDREDTH OF A GRAM.