niceEshop(TM) Cutaway Practice Training 7 Pin Lock (Transparent Purple) Product size:6.5x3.4x2cm/2.55x1.33x0.78inch Lock with open chambers on all the moving parts that allow you to see how it works Quantity: 1 pc cutway padlock and 2 pcs key You can see clearly that how the pins work when a key is inserted