Bath supplies. Mainly shampoo cream, shower gel, slippers and other toiletries. The bath will provide some gyms for free, but the quality is not good. I suggest you bring something better. Lock. Some gyms only provide lockers, so you need to prepare a lock yourself. But in most gyms, when you go in, you will get a bracelet at the front desk with a number on it, and it will intelligently use that number to open the locker, so you don't need to buy a lock. Earphones, sports protective gear, protein powder, etc. You can take these things or not, depending on your own situation. However, it is also good to take an earphone to the gym for exercise, because sports with concerts are more passionate.