The Kannastr GR8TR mini grinder is modular by design. When it comes to assembling and configuring your GR8TR, the choice is yours. You can also break it into a slim pocketable storage puck. The easy change screen/chamber is not included with the GR8TR mini grinder. Grind and Go, brake the GR8TR into a slim pocketable Storage Puck. No other Grinder offers this many versatile configurations.