Designed for clamping to boxes, picture frames, shelves and outside corners, to help square while gluing.Beveled edges, easy to handle and will not damage fragile edges.Material: Aluminum Alloy (6061 -T6). CNC machined from a solid block of aluminum, durable, long lasting. Anodized red surface. Corrosion resistant.Compatible: Suitable for wood/metal, 90 degree welding.Method of use: To place a square in the corner of the two stock pieces, you need to square and secure with a set of pliers.Features: Name: 90 degree positioning squares 11.4 x 11.4 cm.Angle: 90 degrees.Material: aluminum alloy.Shape: L.Color: red.Quantity: 2 pieces.Length: 120mm. Width: 120mm. Thickness: 16 mm. Compatibility: for wood / metal right angle / 90 degree welding.