Well, let's quickly discuss the techniques: The comb, the bottom part of the shaving head, comes in different models which determine the shaving characteristics. An open comb, as MÜHLE R41 has it, for example, can be recognised by the "teeth" which resemble a rake. This model has a blade that particularly protrudes from the head. The shave becomes very effective which is appreciated especially by men with a very thick growth of beard. However, such a model is not very gentle to your skin and the risk of injury is higher. For beginners or men with sensitive skin, a model with a closed comb like the MÜHLE R89 is the more adequate choice. Instead of teeth, there are gentle waves on the comb. The blade is less protrusive. Therefore, the R89 is one of the softest and most popular safety razors on the market.