Adapter for vacuum bags, for example, BoxLegend vacuum bags.
Amazon link: https://www.amazon.de/dp/B0D2NJWRC3?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
Specifically designed without a clip to avoid rotating the vacuum cleaner.
The idea is to screw on the nozzle, plug it into the vacuum cleaner, and extract the air.
The author marked this model as their own original creation.