Bottle plus - "Bottle+" is a space efficient and flexible modular container set. It is designed for the people who want to use their own shower products during the travel or after the gym. Each "Bottle+" consists of several modular units (50ml/unit), which could be separated or unitized by the dovetail joints between each other. People can fill in the containers with their shower gel, shampoo, conditioner and cleanser etc.,combine the bottles according to their needs and carry them away as a whole in one hand. So the "Bottle+" is fairly easy to customize, safe to take on board and convenient to use. Additionally, for the visually impaired people, there is a relevant braille on the cap of each bottle to help them discern between the different shower products.