benefits significantly reduces loud and harmful noises for your little one unisex color perfect for both boys and girls over 3 months (recommended) ergonomic design forfort content 1 set of cool mint adjustable ear muffs attached pva headband (length: 10 inches, width: 1. 4 inches) soft padded headband and muff caps size, fit & headband adjustment headband spans 10-inches end-to-end at the smallest adjustment. Please measure on your little ones head before ordering. Headband can be lengthened by pulling on the headband in an upwards direction. Further adjustments to the fit can be made via the black hinges on the sides. Why the bebe muff? certified noise reduction ear muffs to us standards lighter &pact than most on the market easily folded and packed away for travel durable construction with abs muff caps international lifetime guarantee for any reason, if your little one doesnt like this product, send us a message and we will immediately issue you a full refund. We are really friendly and we make customer satisfaction our number one priority.