NEW Large Size K9 Academy Dog Collar. The 1.5 inch Everyday Tactical Working K9 Training Heavy Duty Strong Military Tactical Clip Dog Collar is a versatile and durable option for your furry friend, with dual layer webbing and triple-pass bar tack stitches using high strength polyester thread. The specially crafted bespoke cobra style combat clip connected with a D-Ring makes opening and closing the collar quick and easy, while extra webbing added behind the combat clip protects your dog's fur from interfering.