That pen case looks good to protect pens while traveling.
No, that case is chunky enough to survive being ejected from a jumbojet at 30,000ft
It's totally inefficient, has equivalent volume of ~6-8 pens yet it's max capacity is 3.
The clip is very hard to disengage and the slide is stiff... if you're not careful when inexperienced, you can fling out the drawer and your pen (held only by friction of elastic) goes flying away like a tossed dagger.
Metros I got from US & Japan previously came in a very nice flip-top black tin pencil case, some even had viewing window on lid. These were beautiful & most useful postSale.
Hope that pen-launcher plastic thing is an Asia-only affliction