(Merck) The Scalibor Protector Band for Dogs provides up to 6 months of protection against ticks and fleas. Collar incorporates a patented insecticide-release technology. Friction releases the insecticide deltamethrin steadily onto the dog’s skin over 6 months. Kills fleas and ticks for up to 6 months. Maximum effectiveness is achieved within 2-3 weeks of collar placement. The Scalibor Protector Band should be worn continuously. Water-resistant collar can be worn while swimming or bathing without impairing effectiveness. The collar must be worn loosely so that two fingers may be placed between collar and dog’s neck. Adjust to fit and cut off excess length. Active ingredient deltamethrin. Do not use on puppies under 12 weeks of age. Consult a veterinarian before using the Scalibor Protector Band on debilitated, aged, pregnant, medicated or nursing animals.