Definition of «glass knobs»

The phrase "glass knobs" typically refers to decorative handles made of glass that are used on doors or cabinets.

One of the knobs was missing on the top drawers so I replaced them with clear glass knobs for simple elegance. (oliverandrust.com)
So I only bought 4 mercury glass knobs instead of 10! (happilyeverafteretc.com)
You did a nice job and I really love glass knobs! (elizabethandcovintage.com)
(see all sentences)