22 PoundsKills adult fleas, flea eggs, flea larvae and prevents the development of flea pupae for up to three months on dogs.Controls flea reinfestation for up to 3 months on dogs. Controls mites that may cause sarcoptic mange on dogs.Kills chewing lice.Kills all stages of deer ticks that may transmit lyme disease.Kills brown dog ticks, american dog ticks and lone star ticks.Can be used on breeding, pregnant and lactating dogs. Waterproof, fast acting and long lasting.All items are brand new, never worn and never used. We guarantee the authenticity of all items.