POSAPET Dog Birthday Bandana Scarfs Pet Birthday Gift Decorations SetHigh Quality MaterialThe dog 1st birthday hat is made of composite non woven fabrics cloth. The dog birthday bandana is constructed of 65% cotton 35% polyester with long term durability and reusable. Reasonable SizeDoggie birthday party hat size: 3. 15'' (height) 4. 33'' (diameter). Bandana triangle size is about 31. 6x8. 7'', fit for neck size less than 23 inches. The elastic cord of the puppy birthday flower hat can adjust the size to meet the head