I have had several DIY projects where I assembled a rectangular clamp using pieces of wood and 3 or 4 regular clamps. Works but not very comfortable. So I ordered two of these rectangular clips and was not disappointed. I attached a 3" piece to a 1/4" piece - it's as easy as clamping two pieces of equal thickness. Clamping is done with a long threaded rod and a screwdriver-like handle. The parts seem a little wobbly when taken out of the box, but turns out that's just the flexibility of the job - the movable head MUST swing to accommodate different sized parts. As this is my first angle clamp I can't compare it to other brands but I am very satisfied and if I were to order more of these clamps I would buy them again without hesitation.