Features:Transparent case allow you to see all the moving parts how it workYou can see clearly that how the pins work when a key is insertedYou actually can see the pins moving up and down as the key slides into and out of the lockIn perfect smooth working condition with no loose parts or pins will come outSpecifications:Material: Stainless Steel+ABS PlasticColor: TransparentLock Size:(L x W x H) approx 5 x 3 x 1.2 cmPackage Included:1 x Transparent Cutaway Practice Padlock2 x Keys9 X Locksmith Crochet Hook1 X L Shape Tool1 X Z Shape Tool