There's a bit of a trick to attaching the cartridges to the handle:
- The cartridges should be left in the plastic case.
- With the rounded end of the case facing towards you, bring the razor handle towards your chosen cartridge (Fig. 3)
Without touching the release button* push the handle until you hear a click (Fig. 4)
- Simply lift the handle until the cartridge pops out.
- Get shaving!
* The button should only be used when detaching the cartridge (Fig. 1 & 2).