The TrackIt™ format combines the most popular DNA Ladders with loading buffer in a single tube. This format minimizes time spent thawing, diluting, and adding sample buffer to your DNA ladders. Simply transfer your TrackIt™ DNA Ladder from the vial   Moreto the gel. These ladders are stable at room temperature and can be stored on your bench top. TrackIt™ DNA Ladders offer two tracking dyes, one that runs behind the sample and one that runs ahead of the sample. The tracking dyes serve as visual markers for following migration during electrophoresis and indicate when maximum resolution of the DNA fragments has been achieved. Additionally, visualization of DNA bands will not be obscured by the tracking dyes because they run outside the limits of most DNA samples