Adjustable: no | Brand Name: ace | Color: silver | Height: 22-in. | Length: 48-in. | Material: aluminum | Number in Package: 1-pc. | Width: 14/25-in. Take errors and guesswork out of your next drywall job with this 48 T-square from Johnson. The JTS48 T-square features a unique rivet assembly that permanently bonds the 1/8 extruded aluminum head and blade, so that it stays square for life, while its clear protective anodized finish will keep your tool safe from rust and corrosion. This T-square was also designed to be easy to use. It features thermal-bonded black 1/8 graduations that are large and bold for easy reading. | Unique rivet assembly, permanently bonds head to blade | Head will stay square for life of product | Extruded aluminum 1/8 in. blade and head thickness | Clear protective anodized finish will not rust or corrode | Screened, thermal-bonded black 1/8 in. graduations | Large, bold easy reading graduations