【Durable & Rustproof Material】Our 90 degree angle clamps are strongly constructed with all-aluminum casting, red anti-rust mask outside, sturdy and durable. 【Independently Adjustable Rotating Jaw】Just one finger to rotate the screw, can rotate and adjust according to different thickness of workpieces. 【Maximum Clamping Range】3 inch / 77 mm. 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. 【Multifunctional Locator】Suitable for woodworking, fixing fish tank, reinforcing photo frame, connecting cabinet and furniture, holding wood DIY project, etc. 【Package Includes】A set of 4 90 degree right angle clamps, to satisfy common daily use. Save working time and reduce work difficulty, very practical and economical.