Check the listing for details. Star Trac TR1800 Treadmill Walking Belt 2ply Premium Serial Lxxxxx. Condition: New. Listed at 169.99 USD. Serial: Lxxxxx Part Name: Star Trac TR1800 Treadmill Walking Belt Star Trac TR1800 Treadmill Running Belt Star Trac TR1800 Treadbelt Condition: NEW 2-ply Premium Walking Belt Ready to Install - Pre-Lubricated LIFETIME WARRANTY (check details) FREE SHIPPING Our Belts are Tested & Fabricated in the USA "Need a custom size made belt? ...we can help, contact us for more information." IMPORTANT: Search by model number. Make sure all information on unit matches listing. Many of our customers often ask us what is the difference between the following names: Treadmill Walking Belt, Treadmill Running Belt, Treadbelt, Treadmill Belt...and the answer is none. Treadmill Belts are often refer to as any of the names above, but the truth is that all belts can be used either for walking or running.- Walking Belts LLC 0000000-2PPremium