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The Convenient Cavity shampoo dispenser is convenient for a couple of reasons. First, it can be hung from hooks in the shower, freeing up space in the tub while also putting it in easy reach when showering. Secondly, the wide hole allows the bottle to be pumped one-handed, which is particularly great for the disabled and injured.

Conceived by designers Bao Haimo, Piao Hailong, Liu Yuancheng, Miao Pengpeng and Xu Kun, the Convenient Cavity shampoo bottle is a 2011 red dot design concept winner. The pump's pipe is pushed to the side so that it rounds up towards the top without compromising the effectiveness of the design. The Convenient Cavity dispenser boasts a minimalist aesthetic.