I got a cactus

I just bought cactus today =) It only cost me RM5. I heard people say cactus can help in absorb harmful radiation. I'm not sure whether it is correct, because from the research, some of them say yes, some of them not agree with it. By the way, I still bought one and place it in my room.

Here is the cactus that I bought...

It look like a star in shape... Sometime I feel it look like mooncake =P