That's what I have but they're not mine. I still have mine.
You do want to be careful punching them into things though. They're best used for slashing attacks, stabbing you need to consider the density of the material. The more dense it is the harder it is to pull them back out, unless you hit a fracture point. Flesh Plaster walls are usually fine, solid rock or thick metal bulkheads or some old trees aren't as good.