4 stars because I wish they were a little stronger. I use two clips in the corner instead of one. Works great for what I need
Pros
βAdjustable & Interchangeable Clamps: Comes with 60/90/120 degree clamps. You can choose the best solution according to your needs, it is ideal for corners and tees, also with different panel thicknesses from 5mm to 22mm. In addition, each clamp has a cutting gap bisector. It is very convenient for positioning.