These 90 degree right angle corner clamps are designed to hold joints securely at perfect right angles for woodworking, picture framing, and fish tank assembly projects. Constructed from durable aluminum alloy with steel threaded vise screws, each clamp features independently adjustable jaws that accommodate different workpiece sizes up to 3 inches wide. The reinforced diagonal connection design helps prevent breakage under pressure, while the red powder-coated finish protects against rust and corrosion for long-lasting use. Ideal for DIY enthusiasts and craftspeople, this 4-piece set provides the stability needed for assembling picture frames, glass holders, wooden projects, and aquarium construction. The quick-release adjustable jaws make positioning and securing materials simple and efficient. Each clamp measures approximately 7.5 by 3.9 by 1.0 inches and works best when used as a complete set of four to hold corners firmly in place during assembly or gluing. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65. The aluminum alloy construction and reinforced design ensure reliable performance across various woodworking and crafting applications, making these corner clamps a practical addition to any workshop or hobby space.