Durable and rustproof materialOur 90 degree angle clamps are strongly constructed with all-aluminum casting, red rustproof mask outside, sturdy and durable. Independently adjustable rotating jaw Only need one finger to rotate the screw, can rotate and adjust according to different thickness of work pieces. Maximum clamping range 3 inch / 77mm. Not only perfect for holding 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.Multi-functional locatorSuitable for woodworking, fish tank fixing, photo frame reinforcement, furniture connection and furniture, wood DIY project outfit, etc.Package includesA set of 4 pieces 90 degree right angle clamps, to satisfy common daily use. Save working time and reduce working difficulties, very convenient and economical.