The visual impression could be better ...

With my Kodak ESP Office inkjets are the labels to use in any way, not even a black and white printing succeeds here in reasonably acceptable quality
With a laser printer that looks obviously different from, or in this case, the print image is completely satisfactory.
The surface leaves me, in spite of gloss, no convincing impression, maybe I'm spoiled too much of inkjets pt paper.

The labels can be detached but very well and stick very well.

Conclusion:

The Herma adhesive labels 4909 function as described.
The visual impression of the glossy surface is for my taste but not optimal, especially not with regard to the not inconsiderable price of the labels.