Features 1、CONVENIENT AND EFFICIENT: Stair tread template tool enables the treadle installer to measure the length and angle easily and accurately without a measuring tape. Easy to use and save plenty of time for measurement. No more shoddy stairs after easy operation. 2、ADJUSTABLE ANGLE: The stair tread gauge is perfect for measuring stair treads, risers and shelves. With adjustable angles from 0° to 300°, you can adjust the angle, length or height as needed to fit the shape of your staircase corners. 3、MULTIPLE APPLICATIONS: This stair tread measuring tool is widely used in a variety of woodworking environments for laying wood stair treads, wood floors, cabinets and window sills, as well as measuring cabinets and closets. 4、PREMIUM MATERIAL: Stair gauge set, made of premium stainless steel, wearable. The surface is anodized to prevent discoloration in hot environments or humid conditions. High accuracy scale. The bolts are portable and reusable. Complete kit for direct fit. 5、EASY TO USE: Adjusting the 4 knobs, you can easily change the length of the stair measuring tool and fix the tool. The Package includes two sets of extensions with lengths of 16 inches (No.A), 12 inches (No.B) and 8 inches (No.C). You can combine them as needed. Specifications Item Type: Stair Tread Gauge Material: Stainless Steel Use: Stair Measurement Tool Specification: A 16in (40.64cm), B 12in (30.48cm), C 8in (20.32cm) Gross Weight: Approx. 1252g / 2.7lb Package List 1 x Stair Gauge Set (Total 8pcs) 10 x Screw 10 x Black Nut Cover 2 x Washer