(Bob Martin) Flea and Tick Dog Collar (5 Month Protection) For dogs over 12 weeks old. Bob Martin Standard Flea Collar a convenient way to and treat and prevent flea infestation on your dog. The 5 month protection will ensure that fleas and ticks are killed on contact and gives 24 hour cover. The collar can be adjusted to size and does not need to be removed when your pet is bathed. Features; - Breaks The Flea Lifecycle. - Blue Flea Collar. - Gives protection for up to 5 months. - For Dogs and Pups Over 12 Weeks.. - Contains*Diazinon. Items Postage and Packaging Charge Uk only 0.50p