_x005f_x000D__x005f_x000D_Transparent lock, you can see clearly how lock works, useful for Locksmith to train and practice. With perfect smooth working condition without any loose parts or pins. It will give you professional feeling. All the moving parts of the lock have open chambers so you can see how it works clearly._x005f_x000D__x005f_x000D_Features_x005f_x000D__x005f_x000D_- Color: Transparent._x005f_x000D_- Material: Metal and plastic._x005f_x000D_-Size: Approx. 5 * 2.3 * 7.9cm/ 2 * 0.9 * 3.1 inch (L*W*H)._x005f_x000D_- Lightweight and durable for convenient and repetitive usage._x005f_x000D_-Smooth working condition and durablity for repetitive practice._x005f_x000D_- See all the inner workings of what a real padlock looks like._x005f_x000D_- Best Padlocks Lock Training Trainer Skill for Locksmith, also perfect for beginners.Packing list3 * Practice Lock Set, Transparent Training Crystal Keyed Padlock for for Locksmith Beginner