Description: 1. Multi-function bevel protractor indexing scale: horizontal and vertical 2. The main body of the instrument is made of ABS engineering plastics, which is easy to operate 3. Use high strength, simple level pipe 4. The dial number is large and the reading is easy 5. With slope and angle comparison table Specification: Style 1: ordinary slope ruler Product size: 250*125.8*25mm Weight: 285 grams Measuring range: 130 angle, -0 angle , -130 angle (50 angle , -90 angle , -0 angle , -90 angle , -50 angle ) 1 points - 8 points (0.5 scale), 10%, 12%, 15%, 18%, 20% Accuracy: plus or minus 1 angle Style 2: Magnetic slope ruler Size: 250*125.8*25mm Weight: 334 grams Measuring range: 130 angle , 0 angle , -130 angle (50 angle , -90 angle, -0 angle , -90 angle , -50 angle ) 1 points - 8 points (0.5 scale), 10%, 12%, 15%, 18%, 20% Accuracy: plus or minus 1 angle includes:1 x Measuring Ruler