This crystal changes from clear to red.  You do not need to touch it:  the change can be done in the hands of the participant, or on the table, or in a box, pouch, glass, etc.

Each set includes:

• 2 Blood Crystals (plus explanations of how to use it, applications, and performance tips)

The video above shows the change from clear to red, and as you will see, it is a gradual change.  The video quality does not do it justice – the start & end color is far more clear in person.

You can perform this indoors or outdoors.

Only 33 sets will be made.