[ Material] Made of aluminum alloy, stair tread gauge is strong, , not easy to rust and , with long service life. The process is not easy to fade. [Adjustable Length] The joints of the stair tread template tool can be combined and stretched at , its length can slide from 11.4 inch to 60.7 inch. You can freely combine according to your needs. [High Precision] The stainless steel plates on both sides have newly added clear and accurate scale measurement functions, which can effectively reduce work difficulty and improve work efficiency. [Easy To Use] Insert the tool between the two walls, safely stretch and tighten the screws to measure the length and side angles, and then you can use it to measure stairs or risers. [Wide Application] The stair tread gauge is widely used for cutting and measuring stair treads, deck floors, wall shelves, window sills, shelves, etc. It is essential tools for woodworking DIY or woodworking construction workers. Colour:blue Material:aluminum alloy Package Contents: 1 x Stair Tread Template Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.