Features: Multi-use Ruler: Enhance your woodworking precision with this versatile carpentry ruler that combines a straight ruler and angle drawing. Laser Engraving: Enjoy clear, easy-to-read measurements that resist wear and tear, thanks to precision laser-engraved scales. Thick and Durable: Constructed with a robust 12mm ruler thickness and a 6mm body thickness, this tool will last long without deformation. Multi-angle Marking: Effortlessly achieve precise angles with adjustable fastening screws—just unscrew, adjust, and mark! Aluminum Material: Made from aluminum alloy, this ruler is both lightweight and sturdy, offering durability and ease of use. Specifications: Model A: Product Name: Thickened Aluminum Alloy Ruler Color: Black Weight: 236g Thickness: 6mm Length: 312×56mm Model B: Product Name: T-type Rotating Angle Ruler Material: Aluminum Alloy Color: Black Weight: 805g Thickness: 12mm Length: 590×305mm Model C: Product Name: T-type Rotating Angle Ruler Material: Aluminum Alloy Color: Red Weight: 805g Thickness: 6mm Length: 590×56mm Package Included: Type A: 1 x Thick Ruler 305mm (Black) Type B: 1 x T-type Hole Line Angle Ruler (Black) Type C: 1 x T-type Rotating Angle Ruler (Red)