I purchased this item new and used it for about six months, after which I stopped using it and stored it away. I used it with an indoor bicycle, so there may be some minor scratches from use, but there is no major damage, and it is generally in good condition. I am also selling a FELT VERZA SPEED, which I used indoors, so please take a look if you're interested. I have confirmed that it works, and I also have the instruction manual. Product Description: Compatible with both ANT+ FE-C and Bluetooth, this trainer simulates uphill resistance in conjunction with indoor riding apps such as Zwift and Rouvy. It has built-in speed, cadence, and power meters, allowing you to ride with just the M2, your bike, the app, and your device. Furthermore, SARIS's innovative click knob uses a clicking sound to inform the user of the optimal pressure for the roller to contact the tire, making it perfect for first-time indoor trainer users.