So far I haven't used the item for any heavy duty jobs, and I wouldn't recommend it either since it is entirely made of plastic. However, for small jobs it will definitely hold the two items together. Sometimes the picture can be deceiving so be advised that this item is just a little longer than your average computer mouse and about 3/4 of the width when clamped.
The item is far too small and made of plastic. It is more like a child's toy than a tool.
When I received these, they were a tad bit smaller than I expected. but they work great for crafting, and holding leather in place when punching designs on it.
A bit cheap feeling but work fine for small projects or hobbies..