This is a good product that works well with an affordable price, for cons I want to clarify that there was a problem opening the product, indeed he missed me a cone (cone one instead of 2 ), so I sent the article. Thereafter it was returned to me, though again it missed a cone when I opened the box, so I was very disappointed but I have not done all malgrés returning once c ' is enough! I hope that my comments will be understood and that this will be taken into account prochiane time. Thank you for your understanding.