I do not know what the quality of these objects for the test, it would take you as they arrive! I think the delivery man comes walking by China .... This order would supposedly sent since 09 July and 18 in the evening, at the time of writing this message, still nothing delivered! I had been accustomed to better than that, and I think I'll revise my suppliers in the future, I believe that confidence has taken a hit! 07/23/2014, that's it, they came ... And finally tried ... It's really not peru! The burner is supplied riquiqui, it does not last long, but good for the price ... I tried to improve it, but every little overhead, a few grams, prevents it from taking off, the ball n ' is not large enough, the next time, I will take more serious, the brand, and therefore more expensive! Miracles, alas, it does not exist!