This stair gauge is compatible with , framing or carpentry square, revolutionizing the way you approach stair stringer marking and repetitive right-angle measurements. Crafted from premium CNC-machined anodized aluminum alloy, these framing square stops boast unparalleled durability and resilience against rust, , and wear. Designed with user convenience in mind, the framing jig feature a clever anti-loss holder and a compact hook, allowing for hassle-free carry and storage. Transform your carpentry game with these versatile stair gauges. Used as a frame square attachment, utilize the stair gauge knobs with circular saws, layout stair stringers, mark repetitive angles on carpenter's squares, and even guide saws for precise angle cuts. Colour:Red Material:aluminum Package Contents: 1set * High Stair Gauge 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.