Juego de cerrajería de 30 piezas con 3 cerraduras transparentes para entrenamiento de práctica, desbloqueo

【1 Practice Levels】This lock p.ick training kit contains 1 different transparent practice locks. You can clearly see how the lock cylinder works under the operation of the key and these tools. When you train to a certain level, you can practice unlocking by feeling and hearing sounds for added fun and difficulty.

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