allegedly "brothers" is not a title and therefore should not be capitalised
As the name suggests, the brothers give a single Pokémon a haircut that increases the [[Happiness]] of the Pokémon, once per day. Using the services of the brothers is useful for evolving Pokémon that require a certain amount of Happiness to evolve, such as [[Togepi]] or [[Espeon]].
The younger of the Haircut
Brothers is cheaper, but his service is often less satisfactory. However, the younger brother has a chance of occasionally increasing a Pokémon's Happiness to a greater degree than the older brother is capable.