MIRROR: Download from MEGA
It's really hard to tell from a picture, but I'd lean toward high quality leather or rubber. A $25 crop probably isn't either.
That doesn't mean it'll necessarily be dangerous or anything though- it might be breakable, or difficult to use, or so on. I've heard of some cheaper ones causing skin irritation because of inferior materials. But it should be safe and manageable, and it's not that much money to lose on it to find out.
So, since you want something affordable, go for it, there shouldn't be any harm in trying it out. But I would be a bit wary of a website that gives no more information on what you're buying than picture/price. If the brand name's listed, I'd look it up.
Fileboom Premium Account
Keep2share Premium PRO Account