Upgrade your treadmill's performance with the Treadmill Doctor Belt, specifically designed for the PFTL609130 Proform 505 CST model. This high-quality walking belt, measuring 20 inches in width, offers a durable and reliable replacement to keep your equipment running smoothly. Its sleek black color integrates seamlessly with your current setup, maintaining a professional and sleek look. With a commitment to excellence, Treadmill Doctor ensures that each belt is meticulously crafted to meet the exact specifications of your treadmill model. This walking belt is easy to install, ensuring your treadmill is back to its best for gym and training or running and jogging sessions. Backed by a 1-year manufacturer warranty, this product is a wise investment for maintaining your fitness routine without interruption.