Sentry collar compressed Thriving Cat > Behavior Problems > Products for Cat Peeing Outside the Box and Other Behavior Problems Due to Anxiety > Sentry collar compressed Jessica March 5, 2016 0 Sentry brand Calming Collar for Cats Leave a Comment Cancel replyYour email address will not be published. Required fields are marked * Save my name, email, and website in this browser for the next time I comment.