The Gillette replacement blades can be used with all Gillette Labs razors, including the Gillette Labs with cleaning element and the Gillette Labs Heated Razor. This innovative replacement blade features five incredibly sharp steel blades and a central opening that allows the warming strip and cleaning element to snap in with a simple click. This universal replacement blade makes it easy to swap in fresh blades, no matter which Gillette Labs razor you use. Gillette Labs razors are excellent gift sets for men, especially when paired with an additional pack of replacement blades.