Zebra Ballpoint Pen Refill, Sarasa, NJK-0.5 Lead, Black, 10 Count BRNJK5BK

The refills arrived so quickly and the seller included the most perfect origami crane I have ever seen which was a very nice gesture! I had originally bought the wrong refills for my zebra sarasa multi with the pencil, but these were perfect. Be sure to check the cartridge name that's stamped onto them before you buy is the lessonI guess!

Arrived on time and in good condition. Fits the Zebra Multi Function Sarasa Pen. I personally like having multiple black pens and fidgeting, so this works for me.

First refills I have tried (other pen brands) which don’t break after a few uses and ink still in the well. Wow! The ink doesn’t last as long as the original pen wells that came in my pen, but at roughly a buck per pen (when I purchased) it lasts the same amount as a dollar store pen. Pretty happy with this. No skipping, no quick bleed out, writes just as good as the original. Yay!

They didn’t fit in regular pens, they kept sliding on through the pens, they were too skinny for the pens

The Zebra Sarasa multi 4+1 0.5 pens are my favorite. I buy these 10 pack refills. I buy black, red, green, & COBALT BLUE instead of the stock blue. I feel the cobalt blue is a nicer blue color that is clearly blue. Depending on the lighting g paper, the stock blue can appear dark , much darker than I like. Cobalt blue is a more true and crisp blue.

Searched Amazon for refills for Zebra G402 0.5mm pen. This product does NOT fit these pens. It's too slim and too long. The spring has nowhere to 'grab' on the refill, resulting in the refill simply slipping out of the pen if turned upside down.I snipped the bottom 'overage' off, still didn't work. I then, pinched the sides to give the spring something to rest on. It at least makes the pen functional, but when the refill is retracted into the pen, turning it upside down allows the point of the refill to slip out freely.

Really works well though pricy.

Bought for Zebra Sarasa Multi-S pen. Easy to remove and insert. Ink doesn't last as long as I'd like but does last longer than others for the pen. I recommend buying 10 packs for blue and black as it seems to be cheaper if you use the pen daily.