Medicine Wheel, also known as Sacred Loop, symbolizes the Circle of Life.  As well known the circle represents perfection as well as infinite since the circle has no beginning or end. Interpretation of the Medicine Wheel differs from Nation to Nation. Travel Mugs are made of high-quality stainless steel. The double-wall insulation keeps your drinks temperature hot or cold for up to 6 hours. 330ml 16cm(h) x 8cm(w)