【NEWEST Flea & Tick Prevention for Dogs】The new 2018 natural dog collar is a safe defense for your dog for 240 days. The improved hypoallergenic collar formula is more effective 【SAFE & ECO & EFFECTIVE】100% formula kills pests with 98% of success. More effective flea and tick prevention for dogs than other collars and still safe and hypoallergenic for you and your pet 【WATER-RESISTANT & NON-ALLERGENIC】Waterproof material can ensure not lose effect. Don’t worry about getting destroyed by bath time, rainstorm or playing on the beach.Anti-allergy ingredients can give your pet a safe way to control fleas,ticks and more 【One Size Fits All Dogs】From chihuahuas to golden retriever, this flea and tick prevention for dogs collar is convenient, one size 25 inch can fit all to suit a range of dogs breeds of varying weights and sizes.Just cut off the excess dog flea collar and put the rest on the mat of your dog for extra protection.