Very fast and responsive

Mind was absolutely blown at how perfectly this fit. Doesn’t feel loose or tight or like it’s going to fall out at all. Love the customization offered too. The text I added was seamless. This also is my recommended sleeve (opposed to the stock ColdCard one) if you get the MK4 mount as well. Everything just feels uber secure, which it should, it’s a ColdCard.

Must have.

Nice build quality. Can’t wait to build my SeedSigner.

Only reason that I don’t give the full 5 stars is because the stamp slot is a liiiiittle tight on some of my stamps. I was 100% able to work through this, but was a tad annoying once you get to about the 15th word. Now, mind you, some of my stamps from the same set were actually a little loose, so a slightly wider slot may be too much for those, but who knows. Still got the job done. Just be sure you get washers that fit flush with the inside diameter of the very base. I’m glad they sent me two because I was an idiot and got washers that fit inside the larger of the 2 diameters and it jacked up both my washers and my jig. Live and learn, baby!

Perfect! Buy with confidence!