?Durable and rustproof material? Our 90 degree angle clamps are strongly constructed with full aluminum casting, red rustproof mask on the outside, sturdy and durable. ?Independently adjustable rotary jaw? Only one finger is needed to turn the screw, can rotate and adjust to suit different thickness of work pieces. ?Maximum clamping range? 3 inches / 77 mm. Not only perfect for keeping the joint at a 90 degree angle, it can also be used for a 45 degree clamp. And the rivets are fixed, not easy to fall off and convenient to use. ?Multifunctional locator? Suitable for woodworking, aquarium fixing, photo frame strengthening, cabinet and furniture connection, wooden DIY project holding, etc. ?Package includes? A set of 4 90 degree right angle pliers, to satisfy common daily use. Save working time and reduce working difficulties, very practical and economical.