Replacement Walking Belt for the Lifespan TR1200B Desk Treadmill Part Number 206116495289141. 

There are Two Sized Used On the Lifespan TR1200B Treadmills. ***This is for the 20X56 Walking Surface***. 

When it comes to replacement walking belts Treadmill Doctor has been a leader in the fitness industry. Our walking belts are made from quality polypropylene materials, 2 ply construction with the backing made of polyester blended material.