Feature: 1. ASSORTED COMBINATION: The height measuring block kit come with seven assorted accurate measuring blocks that can easily be combined to achieve hundreds of different measurements in sizes including 1/8in, 3/16in, 1/4in, 5/16in, 3/8in, 7/16in and 1/2in reinforcement, each of which is of different thickness 2. 4 IN 1 DESIGN: The mounting block woodworking tool can be used as a height gauge, depth gauge, angle gauge or square stack gauge 3. EFFICIENT AND TIME SAVING: The height gauge allow you to accurately set the bit or blade height of your woodworking tool, eliminating repeated cuts. In all project work, you can save a lot of time compared to combining rulers and other setup method 4. EXCELLENT QUALITY AND PORTABILITY: Carpenter measuring tools are made of aluminum alloy. The surface of this router setup meter is smooth anodized for durability and rust resistance. With a protective storage bin, you can easily carry these woodworking metric mounting blocks with you simply by placing them in the case 5. CLEAR AND ACCURATE LASER ENGRAVING: With advanced laser engraving technology, the numbers on the surface of the measuring block are more accurate and easy to read. These accurate measuring blocks can be freely combined, stacked, layered and placed side by side in more than a thousand different combinations to provide you with the most accurate cutting options Specification: Item Type: Setup Blocks Height Gauge Set Material: Aluminum alloy Use: Quick setup of table saw blade height Color: Red. Package List: 7 x Setup Blocks 1 x Storage Box