The Mighty Marker ULTRA UM-125 is a large-format alcohol-based paint marker engineered for professionals who demand bold, permanent marks that last. Loaded with 2oz of our specially formulated Pitch Black paint, the UM-125 features an 18MM dauber that delivers a 12MM stroke width — laying down thick, opaque marks on metal, glass, plastic, ceramic, and most non-porous surfaces. Unlike standard markers that fade or wash out, the ULTRA Pitch Black paint is built to resist fading, weathering, and abrasion in outdoor and indoor environments. The alcohol-based formula flows consistently and delivers rich black coverage in a single pass. The squeezable bottle format puts paint flow directly in your control — press light for detail work, squeeze harder for maximum saturation on large surfaces. Every UM-125 ULTRA ships with an included replacement dauber, giving you extended use from a single bottle. Designed for construction marking, warehouse identification, facility management, pipeline coding, and large-scale creative projects, the UM-125 Ultra is a professional tool backed by nearly 70 years of American marker manufacturing experience. When you need a paint marker that performs like a tool and not a toy, you need a Mighty Marker.