This is a 3d printed holster for a dog repellant named Halt and Halt 2 sold on amazon designed by myself a Mailman of 16 years who understands that every second counts. this holster is not only for letter carriers but also for all delivery drivers and dog walkers. take it with you to dog parks .right on your belt simply pull up and it slides out. if you work for the postal service they provide the dog spray works perfectly and if you don't look for it under the name Halt. THIS IS ONLY THE HOLSTER