A bringsel is a tab that attaches to a dog's collar. The dog will hold the bringsel in it's mouth when alerting. These are great for dogs that are trained to alert on things like high/low blood sugar, heart rate, etc.
 
The length is of the BioThane portion of the bringsel.
 
Note: Colors may vary slightly from pictures because of lighting and different monitors.
Note: Unless otherwise stated all BioThane used is 3/4 in wide.