1、Premium Quality: The 8.5 inch long graduated rod is made of heavy duty stainless steel, the ladder gauge is made of aluminum alloy, all parts are corrosion resistant. High quality materials made for the product can ensure years of long-term use. 2、Time-Saving Scribing Tool: Stainless steel ruler with laser scale marking, hex marking gauge, which will help you scribe lines parallel to a flat wooden surface with maximum accuracy, indicating exactly where the wood needs to be cut. 3、Precise Line Marking Tool: Super clear laser-etched graduation marks on the rod are available in metric and imperial versions up to 7 inch/180 mm, which will help you scribe lines parallel to a flat wooden surface with maximum accuracy, indicating exactly the distance. 4、Stair Gauge Fixture Templates: The template can also fix a ruler, triangle ruler, or clamp it to framing squares, for stair layout, rafter layout, marking repetitive angles, or as a cutting guide on your saw. 5、Easy One-Handed Operation: Quick distance adjustment and one-handed marking, convenient for making woodworking cuts.