... OBM 4.Spot Color,Bicolor,RGB,CMYK MULTIFARIOUS CUSTOM CARD GAME PRINTING1) Size:custom size2) Material:paper3) Printing: ... 320gsm black core paper----high quality , rigid good for casino poker playing cards.250gsm, 300gsm,350gsm art paper----for games ... in advertising playing cards, foreign playing cards, casino playing cards, educational game playing cards ,tarot playing cards,magic playing cards ...