Animatronics (Five Nights at Freddy's)

Animatronics were robots built by the staff of Freddy Fazbear's Pizzaria to entertain children all have metal Endoskeletons that make up the movement and physique beneath the costumes.

They also can be identified as different animals by the suits they wear. The costumes are attached to the endoskeleton using a Springlock mechanism. Holding the suit in place.