Review on 🪒 baKblade 1.0 Replacement Cartridges: Extra-Wide Wet/Dry Shaver Blades - 3 Razors Included! by Julie Burton

I bought these in advance because I needed to replace the original blade in my Bak Blade which I believe is a 1.0. When I removed the original blade and tried to put in one of these new ones, it didn't fit. It appears that while the shape of the plastic guides on the back of the replacement blade match the blade that came with my Bak Blade, they do not slide inward, at least not without excessive force. As measured, my original blade's plastic guide (where it slides into the BakBlade) is 3/32" wide, while these replacement blades have a 4/32" wide plastic guide. It doesn't seem like a huge difference, but it does keep the blade from slipping. It's so snug that I'm worried that pushing in the replacement blade will rip the plastic retainer on the Bak's blade. Very disappointing especially since I didn't try to put them in when I first got them (so I guess) I can't try to request some sort of replacement.