Juego de herramientas de bloqueo tubular avanzado de 3 piezas de 7 pines para extractor de selección de sello de gancho de candado
2,Easy to Use:The 7 pin tubular lock allows you to see all the moving. You can clearly see that the operation of the pins when a key is inserted. You can see the pins move up and down when the key slides in and out of the lock.