these are Schick Hydro 3 Replacement Razor Blades. These refill cartridges are part of a 3-blade shaving system designed with a focus on skin protection.
- Blade Configuration: Each cartridge contains three “ultra glide” blades designed to provide a smooth shave.
- Hydrating Reservoir: Features a unique blue hydrating gel reservoir at the top of the cartridge that is intended to lubricate and protect skin from irritation throughout each shave.
- Design Updates: Manufacturers note that the back side of the blades may vary in color (black or blue) as the design is updated.






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