Flea Collar for cats and kittens from 12 weeks Control fleas and ticks with Bob Martin Flea Collar for cats and kittens Clinically proven this collar is for amateur use to repel both fleas and ticks on cats and kittens from 12 weeks of age Heavy flea infestations must be treated first with a suitable product such as Bob Martin All In One Flea Spray to ensure that your deal with all existing fleas both on your cat and in your home