This is a compatible replacement blade for BRAUN Braun Series 3 shavers. Although it is not a genuine product, there's no need to worry about compatibility issues. It's an integrated cassette type with a foil and cutter set. Compatible models: 300s, 301s, 310, 310s, 320, 320s-4, 320s-5, 330, 330s-4, 330s-5, 340, 340s-4, 340s-5, 345s-5, 350cc, 350cc-4, 350cc-5, 350cc-5R, 350cc-5R2, 360, 360s-5, 370, 390cc, 390cc-4, 390cc-5