Custom product design extention

Hi all,
I was wondering how you can get this functionality on your Magento store: My own bike

Do you guys know of any extension or plugin that adds this functionality or is it developed specifically for this site?

I have seen another site with similar functions but that is a woocommerce site: Mango Bikes

Thank you
Ole

Now, allow your customers to shop on your store by purchasing the products designed by them using Product Designer Extension.