Join the millions who have been protecting their pets with PetArmor® for over 15 years! The PetArmor® Extend™ Collar for dogs and cats delivers up to eight months of continuous protection by killing and repelling fleas, ticks, and lice, no prescription needed. It also targets flea larvae, effectively breaking the flea life cycle and preventing the pests from coming back. The PetArmor® Extend™ formula, with vet-recommended active ingredients, is completely odorless and non-greasy, leaving no chemical smell or residue behind. With water-resistant protection that lasts through every season, you can have peace of mind knowing your dog or cat is covered.