A device that can lock in place using a special spring and lock mechanism. It is mostly known for "Springlock suits", which is a suit that is featured in the famous game franchise,
Five Nights at Freddy's. The suit has two modes,
animatronic mode and well, suit mode. During
animatronic mode, the suit is basically a metal endoskeleton with the costume of any animal on it. During suit mode, the springlocks will hold the endoskeleton out, so depending on the springlock's durability, you can safely put the suit on.