Product Description:1. Contains playing cards and paper instructions, packed in iron box2. Weight: 0.16 kg3. Single product size: about 9.7*9.7*4.5cmFeatures:Each card has 8 symbols. There are a total of 50 different symbols scattered on 55 playing cards (31 cards in the ocean version). Surprisingly, there is only one matching symbol between any two cards. There are five ways to play in this small game