Shut Box #1-48 - Advanced Version of Game That Allows Complex Equations Using 4 Dice A unique version of shut box that uses complex equations with 4 dice Excellent for grades 5 through adult. Developes math skills in a fun way Tiles are wood burned for quality and durability 4 handrcrafted dice from wood that matches the game are included This version will also play as a #1-9 or #1-12 or #1-24 shut box (just flip up the tiles not being used)