K-581 Vibrant Knob - Satin Nickel, Chrome Finish EUROFIT Sale! Login to view price. Specifications Box Quantity = 50pcs Item #: K-581 Vibrant Knob Overall length: 40 mm Internal Width: 40 mm Height: 32 mm Handle Shape: Square Finish: Satin Nickel, Chrome Material: Zinc-Alloy Brand: Eurofit®