How to bridge from arbitrum to mantle?

Could you kindly explain to me how to successfully bridge from Arbitrum to Mantle? I'm a bit confused about the process and would appreciate a step-by-step guide. Are there any specific requirements or prerequisites that I need to fulfill? Also, is there a specific platform or tool that I should use for this bridging? Additionally, I'm curious about the estimated time it takes to complete this bridging process and any potential risks or challenges that I might encounter. Thank you for your assistance!