Using these sunglasses is easy. Just put them gently on your baby's face, adjusting the position for a comfortable fit. The removable silicon strip can be attached for a more secure hold, especially when your baby is moving around. Remember to keep the sunglasses away from sharp objects to avoid scratching the lenses. When not in use, store them in a soft case to protect them. Clean the lenses with a soft, damp cloth. If the silicon strip gets dirty, you can wash it with mild soap and water and let it dry completely before reattaching it. These sunglasses are designed for babies, so make sure to check the fit regularly as your baby grows.