Made of aluminum alloy, firm and corrosion-resistant, long service life. 90 degree right angle corner clip, maintain the joint at a 90-degree angle, whether you simply glue or use fasteners, it will not damage the fragile cutting edge. Designed to be clamped to boxes, picture frames, shelf cabinets and outside corners, etc., to assist with squaring during glue up. Anodized surface, laser marking, clear scale, easy to read. This is a necessary measurement tool in woodworking work., Weight: 0.11904962148 pounds, Manufacturer: Namvo