Woocommerce attributes tooltip

In my ecommerce developed with woocommerce, i’m working with attributes and variations.

One of the attributes (“montaje”) needs a little bit more of explanation, for this reason i want to show after label, an info icon that display a tooltip with description of this atribute.

Sombody knows if any plugin does exactly that or a hook which can help me?

Thank you!

The page I need help with: [log in to see the link]