Keep your furry companions safe from fleas and ticks with Hartz UltraGuard Flea & Tick Collar for Dogs. Each collar provides 7 months of continuous protection and prevention. Suitable for dogs and puppies with neck sizes up to 20 inches.

Fresh scented
Kills and repels fleas and ticks for 7 months. Can be worn simultaneously with your dog's regular collar
 
Water-resistant design won't cause loss of effectiveness if your playful pup takes a stroll in the rain
 
Fits dogs with necks that measure up to 20 inches
 
For use on adult dogs and puppies 12 weeks of age and older
 
Do not use this product on dogs simultaneously or within 30 days before or after treatment with or exposure to cholinesterase inhibiting drugs, pesticides, or chemicals. However, flea and tick collars may be immediately replaced.