How do I transfer from arbitrum to ETH?

Excuse me, could you please elaborate on the process of transferring funds from Arbitrum to Ethereum? I'm a bit confused about the steps involved and would appreciate it if you could guide me through the entire procedure. Are there any specific requirements or precautions I should be aware of? Additionally, could you also mention any potential fees or delays that I might encounter during the transfer process? Thank you in advance for your assistance.