Render K + Uni-Ball Signo = LOVE!

Render K Uni Ball Signo Refill Writing Sample

While I was in SF, I found some refills for Uni-Ball Signo. I couldn’t remember if these would fit in my Render K but I was willing to take a chance. It was blue-black ink in my favorite 0.38 size. At less than $2, it was a gamble I was willing to take.

The package was labelled UM-151 0.38mm. Jet Pens does not seem to stock this particular flavor refill but Maido’s online shop, MyMaido does stock them.

UPDATE: Eagle-eyed reader, Adamfmoore found the proper refill on JetPens. It’s the Uni-ball Signo UMR-1 Refill and it sells for $1.65.

Render K Uni Ball Signo Refill

I discovered that the refill was about an 1/8″ too long so I trimmed it down with a trusty X-acto blade. The plastic is quite hard so if you try this yourself, be careful! It would be easy to slice your finger in attempting this. Once trimmed, the Render K screwed closed easily and voila! Deep green pen with blue-black silky ink. JOY!

Render K Uni Ball Signo Refill

Written on Rhodia No. 18 Uni-Blank Pad. Render K from Karas Kustoms.

5 thoughts on “Render K + Uni-Ball Signo = LOVE!

  1. Thats too funny, I literally emailed the folks at Karas Kustoms yesterday to see when they would have new stock on the Render K because right now they only have two colors available. The reason I want the Render K is because I started writing with one of my Signo DX .38s the other day and forgot how much I love them, so I wanted to get an upgraded body. Karas Kustoms said they would be back in stock on a new run of colored bodies in 3-4 weeks.

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