Durable and rust-proof material: solid die-cast aluminum construction, rust-proof red mask on the outside, this corner clamp is sturdy and durable. Independently Adjustable Rotating Jaw: Only need one finger to rotate the screw, to adjust to different clamp ranges, suitable for different thickness of workpieces. Max clamping range: 77mm, and not only perfect for holding a joint at a 90 degree angle, can also be used for a 45 degree clamp. Multifunctional UsePerfect for woodworking, fixing fish tank, connecting cabinets and furniture, reinforcing photo frames, holding DIY wood projects, etc. Package include: A set of 4 pieces 90 degree right angle pliers, to satisfy daily use. Save working time and reduce working difficulty, very convenient and economical.