This set is suitable for beginners and professionals who want to improve lock picking skills and who always lose his keys. It's a wonderful gift for kids who are interested in structure and science. Comes with different tools and picks, meet your different needs. Features: Lock Picking Set3 lock picking tools and 8 picks, a training lock and a key, meet different needs. Different ToolsThe lock picking tools' diameters are 7.0mm, 7.5mm, 7.8mm Transparent LockHelp you better to learn the mechanism behind the locks. Reliable QualityMade of stainless steel and acrylic, sturdy and durable to use. Wide ApplicationSuitable for beginners and professionals, wonderful gifts for kids. Storage CaseComes with a storage case for conveniently carry. Specifications: Material: Stainless Steel + Acrylic Lock Picking Tool: Diameter 7.0mm, 7.5mm, 7.8mm Package Size: 14.8 * 9.2 * 6cm / 5.8 * 3.6 * 2.4in Package Weight: 300g / 10.6oz Package List: 1 * Transparent Lock 1 * Key 3 * Lock Picking Tool 8 * Pick 5 * Gasket