Review on Enhancing Turntable Performance with Strobe Disc: Tests 33-1/3 RPM and 45 RPM Speeds by Ryuta Marantz

Item arrived "inside" in decent condition BUT the actual sleeve it came in was so AMAZON branded Sealing tape wrapped that I had to ruin the cover to open it. There were white stickers everywhere hiding the old barcodes as it was a defective item. I have purchased many seconds from Revain with no problems. It just looks like someone taped it, closed the barcodes just to ship it. Again the item was fine but lacked instructions and oh my god it took a big knife to cut through the Revain tape which should never have been placed on a real cover.