Blue Stripes hats size 8.5 inches tall and 5.5 inches in diameter at the base. The included elastic chin straps measure 12 inches long. Each of these fun Stripes party hats feature a unique star cut-out decoration at the top. Fun Party Supplies: Blue Stripes cone party hats are perfect for your Stripes party. This set of cute party hats will help you take memorable party photos. They are sure to be enjoyed by all your friends and family - and the guest of honor! Premium Party Hats: Set of 8 Blue Stripes hats are professionally printed on heavy-duty cardstock paper with a photo-like shine. They are individually inspected, then carefully packaged. Blue Stripes cone party hats will arrive flat. Easy assembly is required. Simply roll the party hat into a cone shape, slide the tab into the slot to secure cone shape, and then attach the elastic strap. Made in the USA: Blue Stripes - Cone Happy Birthday Party Hats are designed and manufactured at our Wisconsin facility using materials that are Made in the USA.