[Specifications] It is designed to help holds joints firmly and squarely at an exact 90 degrees. L shaped, which is comfortable to hold in hand. [Parameters] 2 pack 5 inch square ruler​, 90 degree right angle corner clamp. [Wide application] Designed to be clamped to boxes, picture frames, etc. to assist with squaring during glue up. Perfect for boxes, shelf cabinets and for outside corners. Easy to handle and won't damage fragile cutting edges. [Material] Made of Aluminum alloy with anodic oxidation processed, it is durable, corrosion resistant and anti-rust. [Premium Quality&Service] High quality. All our products are extensively tested to comply with rigorous and strict QC standards. We offer a 60-day refund guarantee., Manufacturer: ArtisanShow