The male left female right is basically left to right, and it is necessary to see that the spar itself is a projective (radioactive) or absorptive energy. If it is absorbability, it should be taken with the left hand. If it is projective, it should be with the right hand.
The general bracelet is worn on the left hand, and the black tourmaline is the opposite. According to the principle of left and right, the function of the black tourmaline is to absorb negative energy, ward off evil, and eliminate turbidity in the body, so they all wear their right hands.
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