Material: Aluminum Alloy - Constructed from aluminum alloy, this steel ruler positioning block is designed to withstand the rigors of daily use in a busy woodworking environment, providing long-lasting reliability. High-concerned chemical: None - This woodworking tool is crafted without the use of any high-concerned chemicals, ensuring a and more environmentally friendly product for your workshop. Fixed Steel Ruler: Equipped with a fixed steel ruler, this tool ensures that the positioning block remains securely in place, enhancing both stability and accuracy during operations. Type: Combination - Offering versatility with multiple angle settings including 45, 60, and 90 degrees, this tool is ideal for a variety of woodworking projects, allowing for precise line marking and accurate measurements. Model Number: Steel Ruler Positioning Block - Specifically designed for woodworking, this tool's model number is easily referenced for quick identification, making it a staple in any woodworker's toolkit., Manufacturer: Aundhegrtt