Spring Hook For Gunsmiths To Get The Springs Out Of Reach. This is a new spring hook. This can be used by gunsmiths to get those springs out of reach. It measures approximately 8 1/4" (210 mm) long. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.