On the advice of the reviews here, I let myself by storm this product that my time seems to work. For the duration, hard to say, I'll tell you in two months. Ordered on April 6, still nothing received on 18, which is unusual for orders on Amazons, usually I get my orders in 3 days. Mail to amazon and the next day, I learned that my package was lost in the mail and they send me another one free. 3 days later, I actually get my collis well packed. Kudos to Amazon who took it upon himself postal problems.