The GilletteLabs universal blade refill cartridge by Gillette can be used with all GilletteLabs razors, including GilletteLabs with Exfoliating Bar and GilletteLabs Heated Razor. This innovative razor blade refill features five of Gillette's best blades and has an opening in the middle where the heated bar and the exfoliating bar fit and snap into place with an easy 'click'. This universal blade refill makes it simple to swap in fresh blades, no matter what GilletteLabs razor you prefer to use and will guarantee you Gillette's Best Shave.