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Edging bits vary widely depending on the design of the shank and tooth, but there are two main categories - Western and British. This has to do with two types of riding: one is Western riding, with one hand controlling the loose REINS around the neck; The other is the English horse riding, using both hands to control the REINS at the horse's mouth.

Western rimmed teeth usually have gently curved ports (the center of the mouth curved upward). A popular roadside bit in the West is the grazing bit, a specially designed roadside bit with legs that can be hinged 90 degrees to help the horse graze.

The most common type is the egg pacifier, which is considered the mildest type of pacifier because it does not squeeze the corners of the horse's mouth. It has an egg-shaped connection between the mouth and the drill ring. Nose plugs also include loose trephines, whose rings pinch the edge of the horse's mouth, deer trephines, whose rings are D-shaped, and full-cheek nose plugs, which apply lateral pressure to the horse's mouth.