Multiple Size Combination: This stair measuring ruler set provides a versatile combination of three different lengths of extensions: 16 inches, 12 inches, and 8 inches. You can flexibly mix and match these components to suit your specific needs. Premium Aluminum Alloy Material: This stair tread template tool is made of premium aluminum alloy material, which is enduring and can withstand heavy use. Efficient Design: This stair tread gauge uses an efficient design to streamline workflow and project progress, saving time costs. It uses a user-friendly design to help you complete preparation work quickly and worry-free, and complete tasks quickly and efficiently. Premise Measuring: Our stair measuring tool can be used for stair projects woodworking and home improvement tasks. It is flexible and multifunctional, suitable for wood, metal and plastic. It is easy to use, precise to measure and cut. Easy to Carry: This product adopts compact size and , easy to transport and store. You can carry it to different and it can make you always have the right tool for stair cutting project, Weight: 2.62570554042 Pounds, Manufacturer: Gishbjka