This is a standard STS reversal spray kit.
It comes with a blue spray bottle filled with very potent STS solution, a brown vial of each Part A and Part B components, and instructions for mixing, storing, and using the Solution for the best results.
The pre mixed solution is made fresh to order at the same ratio and recipe as the solution used by me in my own breedings. Fresh two part concentrate is made every 2-3 months and I use the same concentrate that is put in the vials I sell so this is the exact STS solution I use in the research program.
The Mixed solution can stay good for up to 4 months in the refrigerator and the separate two part concentrates will stay good for up to two years in the refrigerator.