Advertisement PVC Color Changing Stress Test Card

This stress test card offers a simple and intuitive way to observe different test results. Designed for everyday use, it requires no batteries and is easy to operate. The patches are made of durable, reusable PET material and can be customized in size, shape, and design to meet various needs. The colors on the card indicate your mood: blue for relaxation, green for calm, red for tension, and black for high stress.

It can be combined with other products such as temperature cards and UV test cards to create multi-functional cards. Cute design.

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