Copper Acrylic Teaching Transparent Lock A/B Double Sides Training Practical Lock with 2 Keys
$ 25.31
1The main body of the lock is made of copper and the outer shell is acrylic. 2Transparent whole body, it is very unique. 3Transparent, which can provides full visibility of all the parts in the lock so you can see how it works. 4Suitable for locks-related teaching. 5The beginner can use this lock to practice and study the structure of the lock.
