High-Quality Lock with Two Keys This training lock is expertly crafted to provide both functionality and durability, making it an excellent tool for learning and practice. Features: Transparent Lock Cylinder: Openings cut into the pin chambers let you observe the lock¡¯s mechanics in real time. Visible Mechanism: See clearly how the pins align and move when a key is inserted, offering valuable insight into lock operation. Smooth Functionality: Designed for seamless operation, with no loose parts or risk of pins falling out. Durable and Reliable: Built to withstand repeated use while maintaining perfect working condition. Whether you're a beginner or refining your skills, this lock is an essential tool for understanding the principles of lock mechanics.