This Transparent Visible 4-Way Cruciform (Cross) Practice Lock is a brilliant training aid for locksmith beginners. Featuring a unique design, it has 4 pins on each side, totaling 16 pins to pick, providing a challenging and engaging learning experience. Key Features: 4-Way Cruciform (Cross) Design: Offers a unique and complex lock-picking challenge with four sides, each containing 4 pins. Total of 16 Pins: A total of 16 pins to pick, allowing you to develop and refine your skills with a higher level of difficulty. Transparent Case: See-through construction allows you to observe the inner workings of the lock, enhancing your understanding of how the pins move and interact. Perfect for Beginners: Ideal for those starting out in locksmithing, offering a great way to practice and improve your technique. This practice lock is an excellent tool for beginners looking to advance their skills and gain a deeper understanding of cruciform lock mechanisms.