Brush the card to the front desk first, and then the front desk will give you the card. You take your card to the locker room to open the cupboard, put everything away, then go out for exercise with what you need (such as watches, wristbands and cups), and then open the cupboard with your card when you come back, ready to take a shower. After washing, put your hand card in order and give it to the front desk, and then the front desk will give it to you.