Details: Ribbit, Ribbit will be the chorus of sounds you hear when children dress up with these fun derby hats. These plastic hats have bulging frog eyes on the top of the head for added fun. Stock up on all your costume accessory and hat needs with Carnival Source. We have a wide selection of novelty, career, costume and whimsical hats to suit any occasion. You'll be sure to find the right hat for your next party or costume with Carnival Source. Product Highlights: Child Size, 7 in. Wide x 4 in. tall, Assorted green and yellow plastic, Ages 3+.