They are well made and small. I have a small adult hand. They slip out of my hand while I'm working. Maybe it's a child size? They are smooth on the inside, which gives me trouble smoothing the end of the wire. I am still studying.
The inner surfaces of the jaws are flat enough that they can grip very thin thread and wire as a smooth jawed pliers should. However, the overall construction and fit/finish is not up to the mark of a small pair of pliers in this price range. Brilliant finish is no substitute for quality.
Tips are thick and not in line, jaws meet at a greater angle than expected and touch with jagged edges. Luckily everything was fixable. I filed the jaws, making them thin and pointed. I put sandpaper between the sponges, which made the contact surface even and smooth. If you have hands, buy.