The Inu Inu no Mi Model: Werewolf is a Mythical Zoan type Devil Fruit that allows the user to become a Werewolf.
Appearence
The fruit was a white apple with white spirals and a blood red stem in the shape of a crescent moon.
Strengths and weaknesses
The user can become a stronger and more fierce form of the wolf known as the Werewolf giving the user superhuman strength and speed. He can transform whenever he wants but he gains even more power at night. The user uses Roku and haki to create moves similar to the CP9 agents. He can even howl loud enough to crack stone and has great regeneration powers. The user can also summon a white inky substance that they call "moonlight".
The user does not only receive this creatures strengths but the weaknesses as well. The users skin burns when they touch holy items or pure silver and holy water makes it harder Hor his wounds to heal. Other then that it suffers from the standard fruit weaknesses.
The user also gains higher senses beyond that of normal animals