This post gives you a little idea of what you will get from the box. 

There you go....

The K4 grinder is well protected from foam sponges.

Oh, how thoughtful, the dual-language manual came with an extra circlip as a replacement. 

Be sure to attach the white O-ring with the handle and the PC lid … or not, it is totally up to you. 

A brush for you to clean the grinder. 

You can learn the grind setting in the blog.

And the re-assembly in the blog.

You can grind with or without the PC lid. 

The black O-ring feature is considered an alternative feature and it is to attached the PC lid to avoid abrasion.

Be sure to remove it before operate grinding or drill-grinding. 

Get the white O-ring from the manual. 

Install it to well attach the handle and the PC lid.

Nice and steady.

The numerical adjustment design indicated each round. The number is easy to the eyes.