When you say you flexed them in your hands and they shattered, what exactly did you do?

I placed my hands in the position I would be on the drops and pushed my hands together. The bars flexed, then started to make that carbon creak/crack sound, then fractured along the tops pretty rapidly.

I'm not particularly strong - I didn't put them onto something / flex them over a point and put my weight through them (as you might if you were to attach them to your stem and then hit a pothole whilst riding).

Good to know. I usually stay away from anything scary light on Aliexpress. Those Odin Zeus stems are other item that I am curious but gonna give a pass.

I also bought a pair of these and they were shockingly flexy. So I flexed them in my hands and they shattered.

I have a policy with aliexpress handlebars that I will do this and if they snap out right they go back - I don't care about the morality, they sold a dangerous item.