Excellent small clamping angles in all sizes. This is for 4 packs of 3" squares but I have bundles of these in all sizes available under multiple brand names that they are sold under. I'm pretty sure they are all made in the same factory and just rebranded for whoever is selling them - these Fladess squares are actually Duratech and you can be sure because each piece has a Fladess sticker right on it attached to the Duratech sticker. I have impressive squares - enough for most layouts and machine settings or for quick reference, but they're certainly not exact squares. So if you get a few wrong squares, maybe expect it to happen here and there. These smaller/thinner 3" versions are stiff enough to take a decent amount of tension and hold their shape or align slightly imprecise cuts, but there are certainly times when it would make more sense to use some of the heavier steel squares instead. Adhesive sticks to this plastic but is usually easy to peel off. It's also easy to trim or shape for specific needs. For these 3 inch models I would like them to come in an equal footed version. Rather than cutting out a thicker 4x4 version, etc.) Pin holes would be a good idea too, but they're easy enough to drill.