Banette is a dark gray, Voodoo Doll-like Pokémon that is possessed by pure hatred.
It has three short spikes on its head and a long zigzagging ribbon trailing off the back of its head. A zipper acts as its mouth, and it has purplish-pink eyes with slit pupils. Its long, flat arms have three-fingered hands, while its legs are short and stubby. It has a yellow, brush-like tail.
Source: Bulba Pedia