Thank you for the plastic razor tip! Using the metal scraper that comes with the Ender 3 pro feels like overkill. And thank you for the links! Definitely printing them out next

Thank you!

Those orange things are ABS plastic razor blades. I use them mostly to dislodge prime-lines and skirts from the bed surface without marring it. The occasional overly thin, or stuck print, too. They work really well for that, but they do wear out quickly. Thankfully they're cheap and come in large packs. Smaller, cheaper packs are available, too, just search for plastic razor blades. MOST brands should fit, but the dimensions listed in the linked product are the right size for the block in the photo.

I designed that razor holder block and you can grab it over here.

Honestly though, now that I've been using it on the stand for a while, I'm seriously considering creating an alternate design that only holds 2-4 plastic razors (they don't wear out that fast, and the box of extras isn't that far away from the machine. Then I'd use the saved space to add slots for tweezers, a nozzle reaming pin, and a feeler gauge. Those are the smallest of my "most often used" tools, and it would be great to have them all together on the extrusion-mounted stand!