I like the Braun model my daughter bought me but the combs are flimsy. Inside the head of the comb there are 2 plastic ridges, one each side, if you don't slide the comb on dead straight they snap off. Both my number 1 and 2 combs did this. These replacements are good, but at £5 each are dear. I would think they cost a matter of pence to make. Postage wasn't cheap either, so I bought 2 of each =£20 so postage was free.