Material: This lock pick sets is made of high-quality, smooth stainless steel, which does not scratch your fingers. The handle is made of soft plastic with a comfortable grip. Entertaining and Learning: Lock picking is not only a funny hobby, but also a valuable skill to bring yourself home in the event of a problem and a good educational tool for children to develop intelligence. Transparent Design: 4 pure transparent locks allow you to see how the precise lock cylinders work under the operation of keys and these tools, this help you understand the mechanism of the locks, helpful for Lock smith training and lock practice. Widely Used in Life: Different lock picking tools are enough to try different types of locks, such as bicycle locks, living room doors, padlocks, file cabinets and drawer locks,etc. Name: 37 piece padlock unlocking tool kit Technical data: Material: stainless steel The package includes: 4 x Transparent Padlocks 8 x keys 1x Key Extractor 3 x Tension Wrench 1 x Convenient zippered holster 20 x lock picks