Features PRECISE LEVELING BUBBLES --- This versatile T-square ruler comes with two integrated levelling bubbles to ensure vertical and horizontal alignment, allowing you to drill and install accurately on flat and uneven surfaces. STRONG ALUMINIUM ALLOY MATERIAL --- Made of high strength aluminium alloy, this woodworking t-square ruler is designed to be sturdy and wear resistant, with clearly printed scales that won't fade easily to ensure dependable measurements for long periods of time. ADJUSTABLE POSITIONING BLOCKS --- This multi-functional T-Square ruler is equipped with two innovative adjustable positioning blocks, this T-Square ruler allows for a wide range of adjustment combinations, enabling you to quickly and accurately handle a variety of drilling and marking tasks. USER-FRIENDLY ABS KNOB ADJUSTMENT --- This multi-functional T-square ruler is equipped with ABS knobs that allow for easy length and angle adjustments, this angle measuring tool offers unrivalled convenience and flexibility for a wide range of application scenarios. MULTI-ANGLE FUNCTION --- For professionals and hobbyists alike, this multi-function T-square ruler supports measurements of 45 degrees, 90 degrees and more, simplifying the completion of complex projects such as installing different sizes of cabinet door handles. Specification: Item Type: Woodworking T Square Material: Aluminum Alloy Product Color: Black Size: Approx. 54cm / 21.3in packing list: 1 x Woodworking T Square Package List 1 x Woodworking T Square