Stringliner (a Keson brand)

Stringliner is a Keson brand offering marking and layout products such as mason’s line and twine for construction and trade applications. Its products sit within Keson LLC’s broader portfolio of professional measuring and marking tools, which includes tape measures, measuring wheels, levels, chalk line reels, marking chalk, paint, and related supplies. Keson is headquartered in Aurora, Illinois, and distributes its products through authorized dealers.