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The BIC Cristal pen is the most successful product ever made, with over 100 billion units sold since its launch in 1950. Its design has remained unchanged in over 70 years and it still sells 14 million units every day. The pen works using capillary action, which draws ink into the ball without the need for gravity. Before the BIC Cristal, pens were expensive and difficult to use, but this pen made writing easy and accessible, costing just $2 when it first came onto the market. Its simple yet effective design, with a hexagonal barrel and transparent barrel, helped increase literacy rates and made writing tools available to everyone. Animation created by Bright Side. ---------------------------------------------------------------------------------------- Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side: https://goo.gl/ZHFt2x ---------------------------------------------------------------------------------------- Our Social Networks: Facebook: / brightsideclub Instagram: / brightside.oficial Stock image materials (photos, videos and others): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- For more videos and articles, visit: http://brightside.club