TCCPLAYINGCARD.COM The concept of the Fluid Series playing cards is to encapsulate flowing colors within the card box. This time, we handed the brush over to nature. Through millions of years of geological changes and the high temperature and pressure of the earth's crust, ordinary rocks have transformed into masterpieces that resemble natural ink paintings. This natural wonder, which took hundreds of millions of years to complete, is now presented in our latest Fluid Series. We have also ensured the most comfortable thickness while maintaining the elasticity of the paper. The thickness is equivalent to 4 fewer cards than standard playing cards, ready to use straight out of the box, bringing you confidence in cardistry.