A perfect addition for destination shops! For travelers wanting to play but who left line cards at home, they can purchase these cards along side our playing cards and be ready to play anywhere! *Sold in sets of 4* Our First Lines card is particularly helpful for those starting out on their Mahjong journey! Simpler lines and categories help new players or children to get confident in picking a line before jumping to the much larger NMJL card. These are a great teaching tool! Conveniently designed to fit inside our boxes, but you can use these with cards or tiles. Colors also designed to be easier to read for those who may be colorblind.