[betalactame]

Wrong item is a possibility but I have to find a cheap article of the same weight

It's not difficult to locate a stock Item of theirs.

Alternatively, If the box Is suitable, you can opt for the sealed box method.

Can you tell me more ? When the item I want to rf is for example 600g, I find it very hard to find another cheap article, of the same category (here, photography material) of the exact same weight.