You'll have a hilarious time with the Honk Honk Horn by EVO! The bike horn for kids has a rubber design squeaks when you squeeze it, alerting others that you're close by. Everyone will enjoy the look of a Honk Honk Horn! Our bicycle horn come in several amusing designs. Parrot heads will enjoy the Parrot bicycle horn and kids love the cute turtle! The mounting bracket is included, you just need a screwdriver to install your new bike horn quickly. It is compatible with handlebars measuring 22.2mm and 25.4mm in diameter. At EVO, what motivates us is the simple joy a bicycle provides. We also believe that not every cyclist is an enthusiast, so we make bikes and accessories that won't come at the expense of the other things you like to do in life. All EVO branded components are made of high-quality materials so you can rest assured that they are made to last.