Stair Tread Template Tool Adjustable Angle Precise Measurement Aluminum Alloy Stair Tread Gauge for Construction Site.Feature: Accurate Measurement: The stair tread template adopts a buckle locking structure, and the angle and sliding rod can be flexibly combined and adjusted, providing a measurement range of 8-60 inches, quickly and accurately measuring the size of stair tread and skirtboard, avoiding measurement deviation and gaps. Sturdy and Lasting: The stair tread gauge is made of aerospace