Pros: kind of cheaply priced for what it is, can become rather loud if you are able to do it right.
quite a big size just like the normal vuvuzela used in S.Africa for the world cup 2010.

Cons: feels cheap, i know there only plastic anyway, but not a very good build at all.
can shout rubbish if not used correctly, and often does sound poor.
the vuvuzela is not detachable but one part slides inside & to become detachable you must use a bit of force, therefore i am guessing its not supposed to detach.

Other Thoughts: could be cheaper for what they are, probably only cost pennies to make, would sell more if were cheaper.
i have had several Vuvuzelas and this was the cheapest to buy but was not as good as the others. the build was poor whereas i paid around $12 for a decent one elsewhere.

Bottomline: not really any good to me, thought they would be better quality and sound better.
will not be buying any more, due to cheapness and i also believe the price is a bit too much for what it is.
(THESE ARE NOT THE GENUINE VUVUZELA THAT WERE USED FOR WORLD CUP)