CALMING COLLAR GREAT FOR FIREWORKS, ANXIETY, AND MORE - Our ALZOO Calming Collar helps provide comfort to dogs experiencing stress due to fireworks, thunderstorms, veterinary visits, stress, separation, or changes in the environment using no synthetic pheromones. These stressors can result in excessive barking, destructive behavior, nervousness, and excessive hair loss. MADE WITH BOTANICALS & ADVANCED TECHNOLOGY - 100% plant-based active ingredients with the calming blend of Valerian and Lavadin infused into the collar with no synthetic pheromones, PVC or phthalatesand. Our Calming Collar is safe for dogs and people when used as directed. WATERPROOF & EFFECTIVE UP TO 4 WEEKS - Our ALZOO Calming Collar maintains it effectiveness when walking in the rain and does not need to be removed when bathing your pet. It is long lasting and is effective up to 1 month. EASY TO USE - Simply attach the collar around your dog's neck. The collar is adjustable in length and fits large dogs. Our breakaway design, allows the collar to break off for a proper fit. Quick Tip: A drop of oil in the buckle facilitates an even smoother glide when fastening the collar. SAFE, POWERFUL & SUSTAINABLE - Our high-quality products are laboratory tested, safe for your pets & family when used as directed, cruelty-free, and made in the USA using FSC Certified and recyclable packaging. ALZOO makes it easy to be both a good pet parent and a good citizen of the earth.