stiebs
Contributor
Read carefully comprehend completely click conscientiously
Never truer words spoken about buying from Aliexpress. That link appears to be for a backplate and harness. Work through the misleading photos and language, and you realise what you're buying is actually just this abomination of a "padded weight plate" that you can attach to your harness.
I hope this isn't what OP bought when he thought he was buying an actual plate and harness