These earmuffs feature a clever design that resembles a hamburger, making them a unique conversation starter and a delightful fashion statement. Designed for a snug and secure fit, they come with an adjustable headband to ensure comfort for different head sizes. Their collapsible design allows for easy storage in your bag or backpack, providing on-the-go warmth whenever you need it. Made from polyester fiber material, measuring For Adult, this custom custom portable burger shaped ear muffs. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.