Leather - KnifeDogs Leather Sharpening Belts 2x72 8/9oz

Mine is in 2x72, as an alternative to hand stropping this leather belt is a major upgrade!
Pros:
Major time saver compared to hand stropping
Consistent surface - minus the joint area the leather has a consistently smooth surface.

Cons:
The stretch in the belt. I know leather as a natural material has some stretch but I can manage to get mine tight enough to work with, but expected a little less stretch.
No directional markings in relation to the seam. Usually sanding, grinding, polishing belts have a direction so you are not going against the seam and possibly taking the belt apart. This leather belt does not so the first time you go to use it you just need to look at the seam to figure out the correct direction it needs to move so you are not pulling the seam apart.

Overall, I would recommend giving one of these a try. I run my leather belt dry and get a hair shaving sharp edge every time.