Steel Ruler Positioning Block 45/60/90 Degree Angle Scriber Line Marking Gauge Woodworking Square Scribe for Ruler Locator Features 45/90 Degrees Block : The 45/90 degrees block allows for precise positioning of materials, making it perfect for woodworking and other machinery parts. Fixed Steel Ruler : The fixed steel ruler ensures that the positioning block stays in place, providing stability and accuracy during use. Thickness 3mm Steel Rule : The 3mm thickness of the steel rule provides durability and longevity, making it a reliable tool for any woodworking project. Aluminum Alloy Steel Ruler : The aluminum alloy steel ruler is lightweight and easy to handle, making it ideal for long hours of use without causing fatigue. Specification: Material: aluminum alloy + stainless steel Stainless steel ruler specifications: metric+imperial double-sided scale Package included: 1 steel ruler+1 positioning block Notice 1. Manual measuring, please allow 1-3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture. 3.Due to long shipping, the item may damage in transit, if the item damage, plase contact us firstly immediately before leave feedback, thanks for your under.