Size dimensions : 15cm x 10cm x 15cm (lxwxh) Product feature: They feature an adjustable elastic band for a comfortable fit, are easy to assemble, and make great party favors that can be kept as mementos. These festive headpieces include 6 paper hats with a colorful design featuring "Happy Birthday" expressions, designed for birthday celebrations. The hats offer a universal fit for both kids and adults, are easy to assemble, and are an essential addition to any birthday party to boost the festive mood. Note: There might be slight color differences as a result of varying lighting and monitor effects.