What am I looking for?

Hello,

I need a little help with what exactly I need to find. I want to send all of the items ordered from the customer to one place where they will put them together in a package (with my logo/nice box) and will ship it out to the customer.

Will I be able to send my boxes to them or do they print them out in their facility? Is shipping by them expensive? Do you use or have a preference with this type of company?

Thank you beforehand