Based on the provided reference (a segment from a Dollar Shave Club video), the question appears to be about how to remove a razor blade cartridge from the handle or cassette, not how to "open" the cartridge itself to access the individual blades. Typically, you don't open a razor blade cartridge. You replace the entire cartridge.
The video segment describes issues with:
- Docking the cartridge: Problems arise when trying to attach the blade cartridge to the handle.
- Ejecting the cartridge: The blade cartridge is ejected by pushing an eject button.
Therefore, the following describes how to remove (or "open," in the sense of detaching) a razor blade cartridge, presuming a Dollar Shave Club or similar system:
- Identify the Eject Button: Locate the eject button on the razor handle.
- Push the Eject Button: Press the eject button to release the used cartridge. This will detach the old cartridge from the handle.
It's important to note that opening a razor blade cartridge to get to the blades inside is generally not recommended or intended. The blades are very sharp and handling them directly is dangerous. The intended method is to replace the entire cartridge.
