Designed to be clamped to boxes, picture frames, etc. to assist with squaring during glue up. Machined from of Aluminium alloy. Resistant to corrosion. Easy to handle and 't damage fragile cutting edges. Anodized . Material: Aluminium alloy colour: Red Package Contents: 4 x L-Type Corner Clamping Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.