This is an Aerostepper from Renaissance (formerly Tokyu Sports Oasis). I purchased it in April 2024 and used it for about a month. (The manufacturing date appears to be January 2024 based on the serial number.) I stopped using it, and I can't find the mat or the instruction manual anymore. The main unit only. There is no instruction manual, but it has a simple design with mode switching via buttons and counter reset by long pressing, so I think you can use it without any problems. Please consider this item as used. I will disinfect it with alcohol before shipping. Thank you!