Accommodating the requirements of different game rules, the number of steel balls can be increased or decreased to provide over 30+ combination gameplay options , catering to the needs of a wide range of games. For example, in the first disk in the picture, D4 can hold 5*2=10 beads at the same time, D10 and D00 can hold 2*2=4 beads respectively, and D20 can hold 2 beads at the same time, which has 20 functions. The second disk D6 can hold 4*2=8 beads at the same time, D8 can hold 3*2=6 beads, and D12 can hold 2*2=4 beads, which has 18 beads, a total of 38 reading functions.