Yes4All Power Rack J-Hooks & Attachments – Heavy Duty Barbell Holders Compatible with 2x2 & 3x3 Power Racks for Home Gym

I use four of these attachments on the lowest point on my rack: https://a.co/d/0g0dpOqE I have a simple 2x2 rack with 1” holes. They’ve held up great, I keep 4 45s on two of them, and miscellaneous other plates on the other two. I’ve even used them for seal rows. The finish will rub off, but again, I’ve used them for years now.