I put a lens cap holder for some time. With a new lens or a new camera, I then need a new holder. The price for a pack of ten can not be beat, but I can now bless my friends :-) The design quality is good, the rubber goes well over my thickest lens (10cm diameter). For long-term adhesion, I can not say anything yet, but the parts are new. The string I hold with 13 cm length for all lenses not suitable, especially with an attached hood. Everyone needs to try for themselves. Therefore, a point deduction.