1. Accurate Scale: With engraved 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 Material: Made of aluminum , this height gauge is strong, corrosion resistance, durable, comes with a 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:red Material:aluminum Package Contents: 1 x Setup Blocks 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.