- This Braun replacement head is compatible with all Series 3 generation shavers - Two closeness foils and a central trimmer give you a close and clean shave every time - It's easy to change - simply click it onto your trimmer and you'll be looking your best in no time - Its foil technology is gentle on your skin and protects it from nicks and cuts - Replace your shaver head every 18 months so you always get a shave of the highest quality