What does pre assembled mean?

"Pre-assembled" means that something is already put together, ready to use. It's the opposite of "assembly required," which means you have to put the pieces together yourself.

Here are some examples:

* Pre-assembled furniture: A bookshelf or table that comes ready to use, without needing to assemble it yourself.

* Pre-assembled model kits: Some model kits come pre-assembled, while others require assembly.

* Pre-assembled computers: A computer that comes with all the components already installed and ready to use.

Basically, "pre-assembled" means you can unpack the item and start using it immediately.