Here's a convenient way to give away biodots: with three dots mounted right on the front of the biodot card and your customized information on the back. No more handing the dots and cards out separately. Biodots allow you to monitor your stress while it's actually happening. Watch the colors change from black to brown to green to blue as you go from feeling stressed to feeling relaxed. Biodots are fun, inexpensive and they really work. Peel the biodots off the card and wear them on the back of your hand for a day to determine who, or what, is causing you stress. Use these three dot biodot cards for health fairs, wellness promotions or as a gift. Sold in packs of 100. Minimum order 5 set.