These earmuffs are light and sturdy, and adjustable. They can be folded up to fit in the palm of your hand. This makes them easy to carry or store when not in use. They can be useful in a wide variety of settings from concerts and sporting events to shopping centers and other loud environments. Use them to protect hearing or to help settle a child down when disturbed by any noisy environment. They have a 22 decibel noise reduction rating. Ages 6 months - plus.