1.[ Excellent Quality]This angle clamp of ours is made of high quality engineering plastic material, light weight, multi-functional, easy to use, solid, corrosion resistant, and can be used for a long time. 2.[ Multi-Angle]This multi-functional woodworking angle clamp can be adjusted from 30° to 90°, which can be flexibly adjusted to the desired angle for measurement, no longer limited to a single angle, making your work more convenient. 3.[ Double Scale Ruler]The 2-in-1 clamps corner holder can provide 90° right angle fixing, equipped with metric and imperial measurement units with clear scales that can be switched at will to ensure accurate and aligned angles, easily achieving precise and efficient measurements with less deviation. 4.[ Quick Lock Button]The holder pushes two clips upward to quickly lock objects of different sizes, easy and efficient. The angle lock button on the ruler can lock the angle quickly and accurately to improve your work efficiency.