Nasekt Corner Clamp Basic Red 4-Piece Set

Purchased on Amazon 3 years ago and never used.

[High Precision! Fix materials at a right angle] Corner clamps allow you to fix materials at a 90-degree angle for woodworking and other tasks. The accuracy of the right angle is high, with a measurement error of less than 1 degree on a digital scale! This is an essential item for those who demand high-precision finishes.
[Compact, Lightweight & High-Strength Material] The base frame is made of high-strength aluminum alloy. It firmly holds and secures materials. The high rigidity of the frame maintains stable accuracy even with repeated use. This compact and lightweight DIY support item easily fits into your toolbox.
[Uses] Useful for tasks requiring right-angle fixing, such as making boxes, bookshelves, storage shelves, desk drawers, picture frames, benches, and shelf brackets. It can be used for a wide range of applications, including right-angle gluing and nailing/screwing, as well as securing materials during sawing.
[Compatible Materials] Supports right-angle fixing for various materials, including lumber, boards, and thin sheets for small item creation, as well as 2x4s, 1x4s, and 2x2s. An instruction manual for safe handling is also included, so even beginners can use it with confidence.