Suitable for baseboard up to 30 mm wide. Features: High Quality Material: ABS+PC+Stainless Steel. Will lasts for years. Resistant to corrosion. 2-in-1 Tool For Efficiency: Both the miter angle can be measured and the cut completed, eliminating the need to use multiple tools and avoiding errors when transferring the correct angle to the saw. Accurate Measurement: 2 moving arms for measuring angles from 85 to 180° can be used directly to measure all angles within this range. Precise Sawing: With the integrated guide pin for the saw, the baseboard is placed on the provided guide plate and the sawing is carried out using the back saw for precise and error-free miter cutting. .