So, I needed to replace the wiper inserts on my is350 2015, and ordered them on lexuspartsnow.com
After I received them, and attempted to replace them, I realized that they do not fit. Length-wise they were correct, but the width of the new inserts was almost x2 what the wiper blades hardware would allow.

Would you mind posting pictures of yours, so I could see how real OEM ones should look like?
I am suspecting that mine are non-oem, after all.
I bought my car used, so the previous owner could have replaced them.

I will post pictures of mine soon

 

they both the same length?
i have had cars with two different lengths

 

the inserts are both of the correct length (with one being longer, the other one - shorter)