Thank you for viewing my work! This is a handmade item. I made ear muffs for children's helmets. On cold days, just attach them to the helmet beforehand, and you can keep your child warm during drop-off and pick-up, even on busy mornings. They easily attach by threading the helmet's band and securing the Y-shaped part with snap buttons. Please refer to image 4 for an example of how to use them. Material: Front: 100% cotton fleece knit Back: Pineapple boa (natural) Size: Approximately 10cm in diameter As this is handmade, the size may vary slightly. I make each one with care, but it is a handmade item. There may be slight sewing errors or distortions. Please refrain from purchasing if you are looking for perfection. Made with a home sewing machine and hand-sewing. Some areas may have remaining chalk pen marks. They will disappear over time, but if you are concerned, they will disappear after washing. Please understand. ⚠ Please use a laundry net when washing.