Professional Carpenter Square Layout Aluminum Triangle Square Tool Carpenter Square Triangle Easy To Read Design Tool M89BOOTDTYechs: Triangle Ruler: Mechanic Engineer Square With Aluminum Handle, which is a durable tool for measuring, cutting and drawing aid. This is important for every roofer, professionals and DIYst of the highest quality: made of high-quality stainless material, not susceptible to rust and decay; It is convenient and easy to maintain. Humanized Design: Aluminum alloy handle makes you feel comfortable and easy to carry and operate; Calibrations are clearly marked; Drawing is easy and precise. Thick Base: It is a hands-free work to stand in a vertical triangle position to check the work; The inside edge of the square handle has an arm that allows it to lie flat on the job, so you can accurately mark any edge of the bladeGreat for carpenters, construction professionals, roofers, and DIYers. Specification: Material: Aluminum Alloy Size: 12cm, 18cm/4.72in, 7.09inPackage Included: 1pc. carpenter squareNote: please allow 0-1cm error due to manual measurement. Make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!