This hourglass sand timer precisely measures 15 minutes from each turn. This hourglass allows you to prioritise 15 minutes a day for what truly matters. Give yourself 15 minutes to finally write that letter to an old friend, or isolate a short window of time for quiet reflection on an important topic. The School of Life was founded in London in 2008. With branches located worldwide, they are devoted to helping all people think intelligently about central emotional concerns. This brand designs beautiful tools, life accessories and stationery that focus on key ideas from philosophy and literature, to psychology and the visual arts. Their ideas will exercise, stimulate and expand your mind.