The brand is Classic Brass and the material is solid bronze. You can order Classic Brass Canyon Collection Round Knobs one at a time. Make sure you purchase enough cabinet knobs to make your home the manor you should be living in. Angels are in the details and the details are in the hardware. A good knob is not hard to find. It is right in front of you.
Precision cast and machined to between 1 11/32" and 1 3/8."