GORAUL Dog Flea Collar - Prolonged Tick Prevention - Waterproof and Safe Dog Collar - Natural Ingredients and Adjustable Flea Medicine ONE SIZE FITS ALL: Whether your beloved dog is small, medium or large, he can possess one his own collar because Goraul dog flea collar is designed 25 inches to fit all sizes of dog. Don't worry if the collar is too long to your pet as the collar can be cut to fit him. PROLONGED PROTECTION: GORAUL flea prevention collar is an economical way to repel ticks, fleas, lice, pests out of your dog since the product lasts effectively for about 8 months at a reasonable cost. WATERPROOF AND EFFECTIVE: An advantage of our dog collars is the water resistant design, which allows it to normally perform the function even in the water. NATURAL AND SAFE: Thanks to the composition of natural oils including Eucalyptus and Citronella oil, our tick repellent collar safely protects your dog against harmful fleas, ticks, pests. It causes no harm, no irritation to your dog and no bad odor to the surrounding environment. WARRANTY &amp; GUARANTEE: As a trusted brand as well as a pet owner, we are always trying our best to provide customers with the best services. If you are not satisfied with our dog flea medicine, feel to return it to us for a full refund.