Springtrap is a massive, towering animatronic that fuses metal, fabric, and the remnants of the human body. It was once Spring Bonnie's bright gold costume, but decades in dust and abandonment have turned the fur a dull, faded green-yellow, with scuffs, stains, and burned areas. The gaps reveal not only the skeleton, but frozen forms in which you can guess the remains of bones and dried muscles fused to the mechanisms. They have become part of the structure, as inseparable as scars on the body.