Not worth the money.
May 26, 2011
As the previous reviewer stated, while you can measure product in to it, once you tilt the bottle to pour, additional product will flow out. Therefor you loose all accuracy.
I have come up with a work around, which is this:
After you measure out the amount you want, increase the divider so it is above your product. Making sure not to squeeze any more product in, take the pro-blend off of the bottle, and let any product in the tube drain out. You can now pour your product out in to your smaller bottle, bucket, etc and it will be accurate to what you originally put in the pro-blend. Certainly not as easy as advertised, and not worth the money.