Hartz Topical Flea & Tick Prevention The patented and easy-to-use Pro-Glide angled applicator with rounded edges easily gets through dog's fur, for gentle on-skin application. Suitable for long and short-haired dogs Includes 3 monthly treatments in easy to apply, single dose tubes Topical drop formula kills fleas, flea eggs, flea larvae, brown dog and deer ticks, prevents re-infestation, plus repels mosquitoes for 30 days Starts killing fleas within 15 minutes For use on dogs and puppies 12 weeks or older that weigh 5-14 pounds