Calming Anti Anxiety Eye Mask  Reduces Anxiety: Ideal for car rides and stressful situations. Eases Grooming: Simplifies bathing, nail trimming, ear cleaning, and haircuts. Stress-Free Vet Visits: Minimizes resistance during minor surgeries and exams without anesthesia. Durable Material: Lightweight, waterproof nylon ensures comfort and durability. Available Sizes: Size S: Mouth 4.72"-7.09", Neck 7.09"-12.6" Size M: Mouth 5.51"-8.66", Neck 7.87"-17.32" Size L: Mouth 7.09"-10.24", Neck 10.24"-22.83" Size XL: Mouth 9.45"-12.6", Neck 12.6"-25.2"