If your Proform 725 TL treadmill is starting to slip or show wear, this replacement walking belt will have it running smoothly again. This is the exact model PFTL43060 belt that came with your machine originally. It's a quality 2-ply construction that's built to last for both home and commercial use. Don't worry about those scare tactics saying 2-ply belts damage treadmills - we've got over 50 years combined experience in fitness repair and guarantee these are completely safe. The belt comes pre-lubricated so you can install it and start walking right away, plus we include extra lube for future maintenance. All the fasteners you need for installation are included in the package. The lifetime warranty gives you peace of mind that this isn't some cheap part that will fail quickly. Seriously, if your treadmill belt is looking worn or feeling sticky, replacing it is one of the easiest and most cost-effective ways to extend your machine's life. Much cheaper than buying a new treadmill!