When it comes to the practicality of decal wine glasses, the following aspects can be considered:

1. Personalization and uniqueness: Decal glass can show personal taste and style, making the glass more personalized and unique. This customized design can make wine glasses more distinctive for parties, events or everyday use, and become a personal identity.

2. Recognizability and differentiation: The unique decal pattern of the decal wine glass can help distinguish the owner of the wine glass and avoid confusion or misuse. At parties or events, everyone can easily identify their own wine glasses, increasing the convenience of use.

3. Reminder function: The pattern or logo on the decal glass can be used to remind specific information, such as the name of the couple on the wedding glass, the celebration logo on the birthday glass, etc. Such a decal design can add commemorative significance to special occasions and make wine glasses more practical in specific scenes.

4. Anti-slip and anti-hot function: some decal glasses use special materials or decal process, which can increase the anti-slip performance of the glass and provide a better holding experience. At the same time, decals can form a protective layer on the surface of the glass, reducing heat conduction and reducing the risk of burns.

In general, the practicality of decal wine glasses is not only reflected in its function, but more importantly, through personalized design and unique appearance, to bring users a pleasant visual experience and a different feeling of use.