Features 1、High Structural Strength: ABS engineering plastic alloy manufacturing has high structural strength and strong impact resistance 2、Omni Directional Measurement: Corner clamping square come with clear and accurate scale, support multi angle and omni directional measurement 3、Accurate Surveying And Mapping: You can use a square ruler to draw vertical auxiliary lines to achieve accurate surveying and mapping 4、Assisting Wood Work: Right angle design, assisting wood work fixing, also assisting positioning, very practical 5、Assemble Picture Frames: Corner clamping square can be used for assembling picture frames, saving both labor and time Specification Item Type: 90 Degree Positioning Squares Material: ABS Positioning Angle: 90° Package List 1 x 90 Degree Positioning Squares