12 x 12cm Aluminium 90 degree positioning square right angle clamps for woodworking carpentry tools, for corner clamping squares for picture frames, drawers. Package includes: 2 square rulers. Professional design: designed to clamp onto boxes, picture frames, shelf cabinets, outside corners etc. to help keep them square during the gluing process. Quality material: aluminium alloy. Machined from solid blocks of aluminium. Will last for several years. Finish: red anodised surface for corrosion resistance. Easy to use: bevelled edges, easy to handle and will not damage the fragile cutting edge. How to use: Place the square on the two corners that need levelling and secure with pliers. Features. Made of aluminium with an anodised finish for durability and rust resistance. Designed to help hold the joint firmly at exactly 90 degrees. Ideal for wood welding work, right-angle metal welding and more. L-shaped for a comfortable grip. Specifications. Material: aluminium alloy. Red Size: 12*12*1.5 cm. Angle: 90. Shape: L-shaped Package includes: 2 pieces of square ruler