[Premium Material] : The stair measuring tool jig is made of quality aluminum alloy , which is sturdy , wear resistant , not easy to break , and can be used for a long time [Practical Tool] : Stair tread gauge tool versatility makes it a must have tool for anyone working on renovation or construction projects [Wide Application] : The stair tread jig tool can be used to measure a variety of surfaces , including stairs , arches , curves , etc [Design] : stair tread gauge tool measuring range is 8 inches to 56 inches , easy to use , is suitable for professional workers and DIY enthusiasts [Accurate Stair Measurement Tool] : It allows step installers to easily operate and adjust to the correct length and angle , easily and accurately obtain the required size of the step, Weight: 3.1085178942 pounds, Manufacturer: N\A