Miếng lót chặn tạ (Spin Lock Collar Insert) cho đòn tạ

I was missing some from some used weights that I got and threw this together. I printed in TPU. It's a tight fit. Lining it up and using the weights themselves to press into place is the way to go.

There are 2 files. One fits into the spinning piece, the other is just a flat washer.