Durable Material: The angle rulers and the four tightening knobs are made of stainless steel, which makes the tool more durable than plastic ones. Simple to use: just place the tool on your material, drag the rulers adjustable into the desired shape, then tighten the screws. Wide range and adjustable: measuring range from 0 to 300mm, it is adjustable to measure right angle, angle 45 , slope 45 , length, depth and width. High precision: The blade-shaped right angle ruler is ideal for interior decoration, precise measurement of machine parts and tool testing. Wide application: The Multi Angle Ruler is perfect for builders, craftspeople, weekend warriors, and DIYers. Features: condition: new. Materials: stainless steel and zinc alloy. Color: yellow, black (your choice). Measuring range: 0 ~ 300 mm. Total dimensions: approximately 30.5 x 12 cm. Weight: about 190 ~ 386g. Contents: 1 combination square.