I ordered a Kevlar BA 50, but received an Arimid MS48. It fits, but the judge is still out on it, as I'm not sure if Aramid is a tough as, or the same as, kevlar.

Exactly what I needed, fit perfectly. Fast shipping.

Right belt and delivered timely.

I was hesitant because of the reviews for these, but I wanted to give them a try on my 44" Swisher rough cut tow behind mower because the factory belts are so expensive.
It worked great, and I got 3 of them for the price of 1 oem swisher belt.
I installed one and mowed for 4 hours straight with no problems.

Pro-tip: when installing any new belt you need to slowly engage the mower/belt for the first few uses, don't just throw the lever all at once or you will smoke it, you need to ease it into use.

Shipped right away, it worked.