The average distance that women in Africa and Asia walk to collect water is six kilometres and the weight of water they carry on their heads is about 20kgs - equivalent to the average airport luggage allowance. An engineer created these cans called Hippo Rollers to ease the lives of women and children, and also to change the images of women with water jars on their heads in less developed countries.
Hippo rollers enable people to transport 5x more water to homes and farms, giving them more time for education, household tasks and food production. They are currently being used in South Africa. See more pics after the cut.