PERFECT CONCRETE EVERY TIME! Thats right. Every time you use Concrete Flipper to mix your concrete, you will mix perfect concrete every single time with our easy to remember mixture formula of ONE GALLON OF WATER PER 60 GALLON BAG of ready to mix concrete! No more guessing on how much water to add! Easy to remember! And only 30 seconds mixing time! go to to watch a demo. Please contact for shipping cost.