Lupine Lupine 3/4-Inch Fly Away 9-12-Inch Containment Collar Strap for Small Dogs Add some flair to your dog's receiver collar Works with Pet Safe; Invisible Fence; Pet Stop and Dog Guard electronic containment receivers Adjusts to fit a neck size of 16 to 24 Inch Proudly built in Conway, New Hampshire GUARANTEED (Even if Chewed)