Whether It's Smoothing Air Bubbles In Wallpaper Or Smoothing The Surface In Cement, You'll Find Lots Of Uses For This Straight Edge For All Your Remodeling Needs. Long 24" Wide And 3 1/4" Tall Where The Metal Edge Portion Is About 5/8" Tall. Edge Is About 0.5mm Think, But Is Cut Clean With Industial Press To Present Even Edge Surface That Would Not Damage Or Tear Wallpapers. Sae Ruler On The Back.