Four technical drawings of electric bass guitars appear in white linework against a charcoal background, arranged in a vertical patent-style layout with front, side, and detail views that reveal the instrument's construction and artwork. The monochromatic palette and schematic presentation evoke a mid-century technical document, creating an architectural quality that celebrates the bass guitar as both functional tool and iconic form. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.