Can you buy robotic arms?

Excuse me, I was wondering if I could get some clarification on something. The topic in question is robotic arms - specifically, can one actually purchase them? I've heard about the advancements in robotics and how they're being used in various industries, but I'm not entirely sure if they're readily available for individuals to buy. Could you please elaborate on the process of acquiring robotic arms, if it's indeed possible? Additionally, are there any specific requirements or restrictions that one needs to be aware of before making such a purchase?