Beautiful complement to the Boise square knob!  I ordered these to replace nickel knobs in my kitchen.  Newer kitchen designs have shown the use of two different Knob shapes on uppers//lowers/drawers, etc.  Although, they came from the same manufacturer,  I was worried the black finish may not match with the Vail.  However, they look terrific and they go together really well!  Nice quick and easy update for my kitchen!