High-quality material：90 degree corner clamp made of high-strength engineering plastic, high hardness, drop resistance and not easy to oxidize, sturdy and durable, easy to carry, can be used for a long time. 90 degree positioning squares：The L-type 90 degree corner clamp is a fixing tool and its grip is comfortable. It can be used to effectively fix the right angle and quickly realize the right angle frame, right angle corner and other parts. Multi-angle scale：Near the center of the right angle clamp, there are 45 degree and 22.5 degree scales suitable for measuring angles. So you can measure and read the data quickly. Scope of supply：4 pieces 90 degree corner clamps, widely used in the assembly of wooden frames, photo frames, furniture, cabinets, etc. for easy leveling. Wide range of applications：Angle woodworking tools suitable for wood welding, right angle metal welding. The angle is more accurate, you can use the right angle positioning ruler to draw two lines for sawing wood.