This square Ruler combines a Triangle Ruler, protractors, and line scribers, providing practical functionality for various tasks Triangle Ruler, protractors, scribers and sawtooths guide multifunction tool Tool suitable for framings, roofing, constructions and renovations projects Constructed with aluminum alloys materials, this angled protractors is resistant to ensuring long durability The scale markingon this accurate carpentry square tool is clear, wear-resistant, and fade-resistant, offering long lifespans without compromising accuracy, Manufacturer: SkyPOOU