1. Scale: With markings, the scale is clear and standard, and you can operate the table saw quickly without guesswork or measurement.2. Main Application: Height gauge is designed with anodized aluminum to prevent damage to the router bit or saw blade during installation, dependable to use.3. Aluminum Alloy Material: Made of aluminum alloy, this height gauge is strong, corrosion resistance, durable, comes with a long life span.4. Fine Workmanship: This height gauge is made and standardized. Flat appearance without burrs, will not hurt hands.5. For Woodworking: This height gauge is often used as ruler and table saw accessories, which is a practical tool for woodworking.Colour:redMaterial:aluminum alloyPackage Contents:1 x Setup Blocks GaugeOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.