This thread is super strong. You can cut yourself with it if you try to break it with your hands. I even had trouble cutting it with a cheap scissors. It's great for reattaching buttons, especially on high-stress areas like pants. The fabric or button will probably fail before the thread ever does.

On the down side, it's not very colorfast. I used the thread to do some mending, and after about a month's use, the color is completely gone, revealing the native yellowish color of Kevlar. The thread is still intact and holding quite well, it's just not black anymore. 4 stars

Delivered as promised, good value, good quality. I use kevlar thread for F3P profile models under 5 oz. 5 stars

Seller was great, got my product fast. I just wish I thought to ask the weight, because I needed something a bit stronger even though Kevlar is supposed to be the strongest stuff on the market. Very pleased with seller, would definitely buy from him again. 4 stars