The brothers ' teeth are very sharp, but fragile. Two rows of teeth allow them to tear flesh, but breaking bones is a difficult process for them, and often impossible.

They often have to smile, this must be done so that people do not see that their teeth are sharp, because they still retain the "appearance" of a simple person. Their tongue is very long, but they almost do not feel it and because of this, they very often bite it very hard, until it bleeds and do not notice it. However, tongue does not play a large role in their tactile system.