Lupine’s Underground Containment Collars are 3/4" wide and have two adjustment points to keep the receiver centered on the dog’s neck. These collars do not have a D-ring and are not intended for leash-walking. This Underground Containment Collar is compatible with DogWatch®, I

Lupine’s DogWatch® Collars have heat sealed holes, these collars fit all DogWatch® receivers as shown. Hole Spacing: 1.25”, Hole Diameter: .375” or 3/8”.