About this item [Adjustable angle] It is helpful for woodworkers and carpenters to fix two boards or glass between 60 degrees, 90 degrees, and 120 degrees. [Easy to use] Easy to operate, save labor time and reduce workload. Solid and anti-skid, helps to set up instantly and secure quickly. [Scope of application] Ideal for use in welding, framing, drilling, doweling, woodworking, making cabinet, installing furniture, box and picture frames, etc. [Product combination] A set of 4 angle clamps can ensure the fixed square, triangle, T shape and other desired shapes. [Complete set of accessories] Package accessories include 4 sets of 60/90/120 degree angles.