Description A Tourmaline stone is said to help repel and protect against negativity. It is excellent for defecting radiation energy. It enhances ones physical well being by providing and increase in physical vitality, emotion stability which helps with relieving stress, and intellectual acuity. It is also a strong radiation block and EMF protector. Features - Color: Black. - Size: 3 x 3 x 0.5 cm. - Material: Crystal rough stone. - A Tourmaline stone is said to help repel and protect against negativity. - It is excellent for defecting radiation energy. - It enhances ones physical well being by providing and increase in physical vitality, emotion stability which helps with relieving stress, and intellectual acuity. - It is also a strong radiation block and EMF protector. - Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! A Tourmaline stone is said to help repel and protect against negativity. It is excellent for defecting radiation energy. It enhances ones physical well being by providing and increase in physical vitality, emotion stability which helps with relieving stress, and intellectual acuity. It is also a strong radiation block and EMF protector. Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!