One should pay attention to the ring before the opening of the (wine) bottle set up so that any sharp or protruding shutter remains not strain the velvet unnecessary.
Priced at 10 I would, however, only awarded 4 stars.
Something-quality - but also expensive - are the drip rings of WMF
* WMF 0655796040 drip ring Pro Wine
* WMF 0658247920 drip ring VINO