Quantitative shampoo bott / Quantitative shampoo bottle

The main modification to this shampoo product is to alter the usability of its cap, so that users can adjust the amount of shampoo being poured out each time. In order to alter it optimally, the cap should be divided into two parts. This removes the traditional style of the cap and replacing it by two different press pump caps, one located on the left and the other on the right. The pump on the left is controlled by a spring to push the shampoo out of the bottle. This pump works by pressing on it in order for the shampoo to be poured out, however when hand is released, shampoo would stop pouring out immediately.