Price and how to

I from Thailand and i am now travel in Us and i will be in Sanfrancisco and los angeles shortly right now i am in Tampa i have excess baggage which is all personal items contain in 24 inch bag for 2 bag and each bag weigt around 25 kg and i wonder is there any way i could ship this back to my home in Thailand and how long will it take and how much will it cost and do i have to get any doucment to get my personall effects out of the customs from Thailand thank you for your help Ravee