Koh-i-noor 2m Mechanical Clutch Lead Holder Pencil

Kohinoor, Czech Republic 2 mm core for mechanical pencil.

Thicker than ordinary mechanical pencil 2 mm using the core, so knock type core holder name is correct?

2 Mm core comes out to knock the shaft tail like shape pen.
So no Wick at once and drop are grabbed by three nails is safe.
5 Colors have multiple, different core hardness separate, Color cores You can color a put.