Item Type: Stair Gauge KnobMaterial: Aluminum AlloySize: Diameter: Approx. 1.96cm / 0.77in, Length: Approx. 4.2cm / 1.65inGross Weight: Approx. 89g/3.1oz 1Premium Material: The high stair gauge is made of premium aluminum alloy with anodized surface, rust proof, stable and durable. 2Application: Stair gauge knob is very stable and accurate, used in woodworking square mark repeat angle, guide saw to do angle cutting. 3Non Slip: This stair gauge knob tool is designed to be non slip and durable, easy to grip and tighten any rafter. Small and easy to carry. 4Convenient And Practical: Stair stringer layout tool for your saw on the guide, used to guide the saw to make angular cuts. 5Professional: Gives you an accurate framing jig and very precise layout, sturdy structure helps ensure the strength and durability. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.