A very convenient thing.
It is especially suitable for large bags when the width of the bag entrance does not allow the use of a folding clip (clothespin) with a lock (it is usually shorter).
Just fold the top of the bag and secure with this clip.
Printed PETG, nozzle 0.4, layer 0.2, mesh fill 15%, 3 walls, without supports and borders.
Thanks for the model.