Acrylic knobs are a great alternative to glass knobs for a variety of reasons. First and foremost is price. Acrylic knobs give you the same look as glass in many cases at a fraction of the price. Another benefit to acrylics knobs is that they won't crack or break like glass hardware sometimes tends to do.
Once mounted there aren't many downsides to using acrylic hardware instead of glass. You can see in the additional images of many of the knobs in this section how closely these knobs resemble glass.
We carry Liberty acrylic knobs and also our own extremely popular line of affordable acrylic knobs.