Features: FLEA AND TICKS: This powerful flea collar for dogs has been developed to protect your pet from fleas, lice, ticks, mosquitoes, and larvae. The dog flea collar empowers your four-footed friend to enjoy a happy life FULL PROTECTION: With our flea collars for dogs you can rest assured that your dog is fully protected and won’t bring home any potentially-harmful parasites SAFE INGREDIENTS: Our flea collar contains active ingredients that are released onto your dog’s skin in safe, low concentrations to offer an effective round-the-clock flea and tick treatment ADJUSTABLE AND COMFORTABLE: Whether you are looking for a flea treatment for small dogs, a flea treatment for puppies, or an effective treatment for large dogs, this flexible flea and tick collar is adjustable up to 23 inches and fits all sizes and breeds of dogs DURABLE USE: Our flea control collars for dogs are made from resistant yet flexible materials.Practical and durable Specification Material: Essential oil, plastic Color: Grey Size(L x W): About 38 x 1cm/14.96 x 0.39inch Quantity: 1pc or 3pcs  Package included: 1pc x Flea Collar Or  3pcs x Flea Collar Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2cm differences due to manual measurement.