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Trinity Manufacturing H.K Limited
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Stress biofeedback card, we also call stress control card, biofeedback card. It can be used as Sex tester card, Lover card.
Usage:
Hold your thumb onto the Stress Control Card indicator for about 15 seconds, until it changes color.
Blue - you're calm,
Green - you're normal
Red - you're tense,
Black - you need a vacation!
Details:
Anyone having anxiety can benefit from the Stress Control Biofeedback Card, it Makes relaxation to be fun and inexpensive. The Credit card size with Black Square changes color by touch. Less anxiety-caused headaches, HBP, insomnia, smoking, overeating. Temperature indicator, credit card size in durable plastic. Liquid crystal square turns color as the finger warms it. A color rainbow on the card compares the crystals color to Stressed, Tense, Normal or Calm.
-Customer? design is welcomed
-Any shape is available
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