Pacon30-Slot Mailbox 21"x31.6"x12.8" Classroom Keepers Mailbox

How sturdy is this when full? We will only use it a few times a year, but when we do use it every slot will be nearly full. Will it hold up to that?

I came with no instructions. Can you tell me where to download the assembly instructions?

What are the dimensions of the entire box?

what are the deminsions of the name tab?