I think all of the "new" (primary color orange) Landroid models use the same blades - small, razor-blade looking things. They usually come with just one hole, but replacement blades with 2 holes will work just as fine - since they'll mostly get dull from the "far end", you can actually get more life out of your blades by flipping them, if they have 2 holes. And of course, you can always sharpen them again - it seems to me that just a few sets of blades will take you long way if you're ok with occasionally sharpening old blades up. Be sure to change the screws to new ones every time you change blades, though, as they wear out first! There are plenty of options online for getting replacement blades, but 2 solid options are AliExpress and Amazon. A good example of blades with just 1 hole would be these: https://s.click.aliexpress.com/e/_DDw635N And with 2 holes: https://s.click.aliexpress.com/e/_DeclH8x Or if you prefer using Amazon: https://amzn.to/3eVgDgr or https://amzn.to/3acmhZz (To my experience Amazon is usually a bit more expensive than AliExpress, but far faster)