Low hours on a high quality machine from a trusted brand. Underdesk treadmills have no superstructure/handles and are designed to operate for long periods of time at slow speed without overheating. The control console is wired rather than mounted, so it can sit on a desk or shelf. Top speed is 4 mph, which, along with a belt length of about 4 feet makes it unsuitable for running, yet perfect for office work. Overall size is about 62" x 28". I retired earlier than planned soon after purchase, so low hours on this machine. (see the current iteration here: https://lifespanfitness.com/products/tr1200-glow-up-under-desk-treadmill)
See an owner's manual here: https://cdn.shopify.com/s/files/1/0557/8014/7381/files/OM_DT3_TR800-1200-5000_2_2NB_web.pdf?v=1651005870