I am satisfied with this article because the valve closes badly and especially the hull is covered with a kind of dull blue plastic film that abyss and crumbles, comes off slowly, revealing the blue hull platisque bright, which is the worst effect - and that after only 15 days of use. I do not recommend this product, especially for this price. The original hull is certainly better than the shell provided with this article, which is a shame, because it is the same brand.