The Ozonics windicator provides up to 5x more wind checks than conventional powders. Ozonics fibers float on air currents providing vital information regarding wind direction enabling you to accurately provide odor destroying ozone where it is needed. The Windicator uses 100% natural - biodegradable fibers that ride the wind for long distances - far outlasting powder wind checkers. The Windicator easily attaches to your pack or hunting jacket or convenient access.