It is very easy to administer and is quite effective in killing ticks and fleas. It starts working within a day of buckling and kills ticks and fleas. This collar prevents tick infestations for 10 full weeks and 4 months for fleas. This easy to use collar is highly safe for dogs since it contains an exclusive safety section molded in the collar which aids in breaking off the collar if a dog gets accidentally caught by the collar. Thus, it prevents dogs from choking. It does not cause any skin irritation in dogs. It is made up of plastic resin which makes it highly safe for dogs without any apparent side effects.