But once activated, the tetrachlorvophis keeps pests from making your dog their home. We like this collar for large dogs because the largest size can fit necks up to 26 inches in circumference.

Three feet long and equipped with five extra-large knots, this toy is a fantastic length for larger breeds. Ensure your dog has a secure, well-fitting collar for their comfort and your control.

For long I have been bothered by dogs being pulled around and restrained by a neck collar. I don’t know how dogs feel about that, but I suspect they wouldn’t be comfortable. A breast harness would be ...