Great Product. Explicit explanations. Prepared me well for the math portion and pat portion of the DAT.

I bought this because my old wine pump was absolutely terrible and could not keep any wine fresh, even for a day. This pump is much better and for $10.00 it is an exceptional value. I only gave it four stars though for two reasons (but this may only apply to my pump): There is never a "click" sound to let me know that it is finished. I always just pump until I am sure all of the air is out. Also, I read a few reviews stating that the wine stays fresh for a week or more. That is definitely not true. In my experience it only keeps the wine fresh for about 3-5 days max. These are only minor complaints though and for the price I still think it is a great buy!