Lucky Silicone Luggage Tag is made of premium silicone material, which is heat-resisting and durable. These card sleeves feature square shape in various colors, which can be used to hold an informational card on which you can write your phone, email and address to prevent your luggage from getting lost. Comes with a silicone rope easy to hang on bag when you're going out. Ideally used to holding bank card, bus card, student card, ID card, etc.