These costume hard hats are a great party accessory and dress up toy! If your little ones are 'man's men' or 'tom boys' they'll love getting in gear and whistling while they work! Please remember that these are just a thin costume accessory and toy, and DO NOT provide any means of protection for your loved ones. Twelve (12) construction helmets are included in this set. These are great on their own, but could be even better with the other costumes and accessories available in our store!