【Durable and Rustproof Material】Our 90-degree corner clamps are made of cast aluminum with a red rustproof exterior, making them sturdy and durable. 【Independently Adjustable Rotating Jaws】Just one finger to turn the screw, it can rotate and adjust to different workpiece thicknesses. 【Maximum Clamping Range】3 inches / 77 mm. Not only perfect for holding the joint at a 90-degree angle, but can also be used for a 45-degree clamp. The rivets are fixed, not easy to fall off, and convenient to use. 【Multifunctional Locator】Suitable for woodworking, fixing aquariums, reinforcing photo frames, connecting furniture and cabinets, supporting DIY woodworking projects, etc. 【Package Includes】A set of 4 90-degree right angle clamps for common everyday use. Saves working time and reduces labor costs, very practical and economical.