Material: ABS shell + sound insulation sponge + soft rubber edge protection, Product size: the triangular side length of the earmuffs is 10cm; Suitable for dogs with a head circumference of 17-25 inches, three adjustable elastic bands can better fit the shape of the dog's head; Suitable for medium and large dogs such as Labrador, Sheepdog, Golden Retriever, Bernese Mountain Dog, etc., not suitable for puppies or small dogs. Hearing Protection -- The dog noise-cancelling earmuffs are made of high-density sound-absorbing foam for excellent noise reduction. They also have a soft cushion insert to reduce resonance and protect the dog's hearing. Adjustable Strap -- This adjustable headband is perfect for dogs with different ear shapes, providing a more comfortable and secure fit. Comfortable and Lighter -- The dog ear muffs is based on animal engineering, earplugs fit snugly lightweight, weighing only 0.55 pounds, so the dog will not feel any pressure on its ears. Applicable Scene -- Dog ear muffs can protect your dog's hearing during events like fireworks, hunting, parties, performances, thunderstorms, and helicopter rides.