This replacement foil head is compatible with the GAMMA Cordless Prodigy shaver only. Specially designed for longer hair the silver slick foil glides over your SKIN CARE for a super comfortable close shave. Meant for trimming and shaving beards mustaches sideburns bald heads and back of neck. It is also great for creating straight clean lines. And because the Prodigy shaver is cordless youll have no trouble maneuvering it and getting the necessary angles to achieve your desired style.Replacing your blades gives you a better closer shave with less nicks and cuts to the SKIN CARE. Easy to clean and disinfect. For best operation clean your foils regularly or daily depending on usage by rinsing with warm water and slightly brushing with a small soft bristle brush to remove debris.