Cove Office Chair (Structube) Head Rest Extender

I bought the COVE office chair from Structube (https://www.structube.com/en/cove-office-chair-28-68-56?pid=18055), and found that the head rest was too low, and my shoulders were touching it (I'm only 6'). I created this piece to make the headrest about 2" higher. I also think it looks pretty cool as well. Everyone thinks that it was like this from the factory. I've used it for hundreds of hours, with no problems, made with PLA.