PilotHi-Tec C Coleto Gel Ink Pen Cartridge 0.4mm 15-Set One of Each Color Ships from California

All of the cartridges write and all colors were there. They all write really smoothly and fit perfectly in my 4 in 1 Hi-Tec C Coleto multi-pen shell. All of the colors are visible on the first stroke, no need to rewrite, even the yellow shows up well bc it’s a orangey yellow! Be careful not to push on the plastic piece that allows you to click the color up or down when it’s inserted in a multi-pen shell tho. That clicker is only attached to the ink cartridge by a tiny tiny piece of plastic and can easily break.These are the smoothest gel pens I’ve ever used!

Put them in a Pilot Coleto 1000 multi-barrel pen with some blue-black refills. Perfect pen.

I'm currently waiting for the pen barrels to arrive so I can use these (different purchase), BUT not all of the inks I received are a .4 tip.2 are .3Minus 1 star for inconsistency :/

Love the vibrant colors. 0.4 mm size allows me to write very small in my margins. Easy to change out.