Excellent Product!
These work great!  I love that I don't have to mix my shakes before going to the gym... they just taste funny if they've been sitting for awhile.  These are great sizes (more than enough room in each for any dose) and they clean easily.  Obviously; it doubles as a funnel so I'm not spilling powder all over.  I do kinda wish the lower opening was wider... but whatever.  Great product.  I've had several friends ask how to get some for themselves
Rating: 5 stars